There is of course, a fbook page devoted to coroplast velo builds. Although I see that lately they are doing some crossover into small EV's. Anyway here's the link.
https://www.facebook.com/groups/1564...ocation=stream
Bob,
That 2 mm coro is kind of hard to get . It's not particularly expensive but the shipping due to the size can be costly. I live in Sacramento which is a moderately good sized city and none of the larger suppliers carry it or want to have it shipped here because it's not that popular.
JJ