Search online. I found them before but didn't save the results sorry. Problem is Shipping. It is HIGH. They are not 8 footers either. Much longer and wider. It was a company that supplied them for 18wheeler trailers.
Here in OH I did find one place that makes cargo trailers and sold parts. I think they sold sheets of 5x6. or was it 4x8.... cant rember. Think 5x6, but they were pretty high price. almost bought one.... but I couldn't put it inside a VW Bug to get it home. By end of summer I'll have my LMTV 1078 and will drive out to get one to repair my 4x6 cargo trailer. Trailer place was north of Cincinnati if I recall right.
oops..... my bad.. Just re-read your post. See that you're looking for COILED and not flat. What do you mean by Coiled? the Ribbbed siding like travel trailers.. or a big roll of flat stuff? If I recall right they don't sell in rolls if that is what your thinking. It makes mounting it harder and results are not as good. Pretty sure they sell the flat in sheets. LARGE sheets like 10x12 if I recall right. Places you called buy them from similar suppliers then recut for huge$$ mark up sell price. No way they will sell you a full piece cause they tripple or more their many buy cutting them up.
So long story short..... try searching for folk that make Cargo Trailers near you or build or repair Big Rig trailers. Oh.... and have a truck.
