Looking for a metal RV cover for my 30' trailer

[topher]

I am buying a used 30' trailer to put down at my deer lease and am looking into a metal canopy/cover for it. The dimensions I have seen online are LxWxH 31x18x10 and 41x18x10. I would also be interested in the partial side panels for protection from the weather and hail.

I am looking for a good local dealer. I can assemble it myself. I am just looking for a good dealer and kit.