One of the things I do is preserve, save, and collect plans. It seems the best way to preserve the legacy of some of the great old designs. Building over glass really helps to truly protect your plans when building. I finished the obscure Sun Fli 5 last spring from plans sent to me from a fellow RCU member. It took me a couple of years to track these down. It is one of the best flying planes I have. This design was from Joe Bridi, 1972