Our EAA chapter has been given a RV10 kit that was put together with 1/8" CS4-4 flush alum with carbon steel shank rivets. We are trying to figure out how this will effect the price if we chose to sell the kit. I think it will be strong enough, but it will be a "one of a kind" bird; and please do not ask why the pulled rivets, cause we do not know. Blue Skys Barry