I have a shed that started as a "shed-in-a-box" ... when the material finally fell apart from the uv, I bought enough corrugated roofing to cover the top and sides, using the old framework made for a quick and sturdy shed. I do not have to worry about the "snow" load in texas. It seems to be holding up very well.
How long did yours' last? I hope to get another year or two out of mine. It looks good yet, but thing seem to turn sour all of a sudden.
I've been thinking along those same lines about re-using the frame, but I do not want to run afoul of the building inspector.