Balsa wood collection for RC planes

I have been building balsa gliders for years but am having a clearout. A box full of sheet stock of various sizes and hardnesses and another sames size box full of long scraps suitable to make into strips for building airframes etc. I can post it, about 7kg I think, I will put 10kg in for safety. Its been in a dry shed in this box for years, smells a bit, needs to be aired.