Help a newbie find a trailer brand!

Hey everyone! After two years of dreaming and 6-months of failing to rebuild a water damaged camper, I'm here and ready to buy something with four solid, non water damaged sides.
I've absorbed every drop of information I can these past two weeks since discovering cargo trailer conversions, so I feel well researched but would appreciate some guidance from people who have already been there, since researching the different brands is still a bit overwhelming.
I'm looking for a flat front, one piece rounded roof 7x16 TA and live near Charlotte, NC, and would prefer not to devote more than a day driving to pick something up (there and back in a day.) I know flat roofed v-noses are all the rage these days, but after seeing what water damage can do I won't settle for less than a rounded 1 piece roof to make water prevention easier, and I've read enough posts from old towing curmudgeons all over the net to know that v-noses don't affect aerodynamics nearly as much as weight distribution and the back of the trailer, and I'd prefer a flat space on the tongue and interior wall anyway.
So being near Charlotte and looking for rounded roofs and manufacturers that seem to give a crap about water leaking, I've narrowed it down to this:
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Interstate Cargo (LoadRunner or Pro line)
The solid roof is standard and I haven't read a bad thing about the durability and construction of the LoadRunner or Pro line. Theres also a TrailersPlus store about an hour from me so it would be an easy pickup, and easy to take it back for any warranty issues.
Car Mate
I haven't found a manufacturer with more praise than Car Mate yet. No need to describe their quality. Nearest dealer to me is 5 hours away, so not impossible to do in 1 day, but if I have any issues I'll probably be fixing it myself. Definitely going to be the most expensive of the bunch.
Diamond Cargo
I know Diamond Cargo is from the Georgia pool, but there is a dealer with great reviews a half hour from me. It would require more upgrades when ordering, but the price will likely still be $1000 cheaper than Interstate or Car Mate, and the dealer is close should I have an issue. The catch is that searching for reviews on Diamond Cargo doesn't return anything comforting. Buying here would be a gamble, not a sure thing.
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Are there any other manufacturers I should consider that have dealers somewhat close to me? Namely ones that don't hail from Georgia. From what I've read, most of those brands likely come from the same plant anyway, so If I'm going for a Georgia trailer I might as well pick the dealer closest to me thats well reviewed.
I greatly appreciate everyone's time, very excited to get started!
I've absorbed every drop of information I can these past two weeks since discovering cargo trailer conversions, so I feel well researched but would appreciate some guidance from people who have already been there, since researching the different brands is still a bit overwhelming.
I'm looking for a flat front, one piece rounded roof 7x16 TA and live near Charlotte, NC, and would prefer not to devote more than a day driving to pick something up (there and back in a day.) I know flat roofed v-noses are all the rage these days, but after seeing what water damage can do I won't settle for less than a rounded 1 piece roof to make water prevention easier, and I've read enough posts from old towing curmudgeons all over the net to know that v-noses don't affect aerodynamics nearly as much as weight distribution and the back of the trailer, and I'd prefer a flat space on the tongue and interior wall anyway.
So being near Charlotte and looking for rounded roofs and manufacturers that seem to give a crap about water leaking, I've narrowed it down to this:
--------
Interstate Cargo (LoadRunner or Pro line)
The solid roof is standard and I haven't read a bad thing about the durability and construction of the LoadRunner or Pro line. Theres also a TrailersPlus store about an hour from me so it would be an easy pickup, and easy to take it back for any warranty issues.
Car Mate
I haven't found a manufacturer with more praise than Car Mate yet. No need to describe their quality. Nearest dealer to me is 5 hours away, so not impossible to do in 1 day, but if I have any issues I'll probably be fixing it myself. Definitely going to be the most expensive of the bunch.
Diamond Cargo
I know Diamond Cargo is from the Georgia pool, but there is a dealer with great reviews a half hour from me. It would require more upgrades when ordering, but the price will likely still be $1000 cheaper than Interstate or Car Mate, and the dealer is close should I have an issue. The catch is that searching for reviews on Diamond Cargo doesn't return anything comforting. Buying here would be a gamble, not a sure thing.
--------
Are there any other manufacturers I should consider that have dealers somewhat close to me? Namely ones that don't hail from Georgia. From what I've read, most of those brands likely come from the same plant anyway, so If I'm going for a Georgia trailer I might as well pick the dealer closest to me thats well reviewed.
I greatly appreciate everyone's time, very excited to get started!