Hello Stealth TDI,
I just ordered a Cargo Express Pro series cargo trailer. Delivery date is to be next week. It was suppose to be here this week, but the dealer isn't able to pick it up till next.
One of the big selling features for me was the construction of the frame (walls and roof crossmembers). They use steel square tube construction in the walls and roof. Weight for me isn't that big of an issue. Exterior is .030 aluminum as is the roofing too. I am not a big fan of galvanized steel. I have seen it rust over time.
I was also able to order it without any interior sheathing on the walls so I can insulate it and run the wiring myself.
The v-nose models have a 1 piece roof so there is no seams on the rooftop. They overlap the roofing onto the side wall exteriors. I looked at the rounded roofs and they seemed to have a few seams.
Like I said, I haven't recieved the trailer yet, but I hope I made the right decisions. I researched alot of different manufacturers and this one seemed to fit my bill the best.
Good Luck