I have some leftover 1" and 2" foam pieces that are free to a good home. I have 4-2'X8' pcs of 1" Foamular and a variety of smaller pcs of 2" Hopefully someone building a foamy can use them, If you live around Lakeside, CA, let me know and we can arrange a pick up.
Anything is possible, if you don't know it can't be done!
It won't be enough to build a whole camper but it would surely help someone out of a jam if they had an oops and need a bit more material to recover, or help soften the cost of buying a whole camper's worth. I got my tongue box out of "extra" stock that I hadn't planned for in my original purchase, so there is always a need for useful size pieces of foam.