
I see alot of people buy the HF frame, and then do all the upgrades that have been mentioned and I think man, what a waste, because you end up with a pile of wasted parts and money.
I might suggest for those with out welding ability or access, to custom make a frame out of angle like the old trailers were made and using quality grade bolts to hold it together, and once it is all together take to your local muffler shop and have them weld up the joints. Everyone had a muffler shop around, just don't go to a big name one, they are always worried about liability and will charge you like crazy. Sorry to "Profile" but go to the smaller Mexican owned ones where the owner works there, or at least go to a "Good ole boy" shop, (hows that for white boy profiling LOL) they are usually excited to get to work on something unique. You get the rest of the stuff like the axle, wheels, fenders, etc, from Tractor Supply or Northern tool and when you end up, you have chosen all the parts the YOU want and don't have to do a lick of welding, and didn't waste a bunch of money.
As far as brakes, to me it depends on the size and weight of the teardrop. My teardrop weighs around 800lbs and I can barely feel it back there. I towed it initially with my old 1971 Chevy truck with an inline 6 and manual brakes. That's manual brakes, and a tiny engine, no problemo. Also, when my brakes completely went out a couple weekends ago coming back from Lake Bob Sandlin, all I had was my emergency brake in the truck to stop, and it stopped just fine too. That is a big real world testament in my mind that it would be overkill for my particular trailer. I won't speak on larger trailers because I don't want to speak on things I don't have direct knowledge of.