Enclosed Trailer Question

[yler4cy]

Good morning everyone!
Over the past few years I have grown a side business custom building carts for people. It has been great fun and I have learned a bunch from this site. Well with a growing business comes a growing need for more hauling and storage. Currently I only have a 2.5 stall garage at home and it is filled with carts that I am building. I am wanting to buy an enclosed trailer to haul the carts once done as well as store those that are waiting to be built. I have a few questions around this:

1) On the 8.5' trailer I see that the interior is 8' wide. Will that be wide enough to haul 2 stock carts side by side?

2) With the wheel wells situated the way they are, I am guessing if I build up to go over those to haul 2 carts above them I will need to remove the roofs?

Also, any other pointer that you can give would be greatly appreciated.