sounds like a interesting project

but I think CF just weights to much for a micro plane with the resin and all, foam or balsa is the best way to go with a micro or even paperstock, but i really think CF is to heavy in building a mirco plane. Just my 2 cents worth, Take care, Chellie
BTW, 50mm is about the smallest cf fuselage I belive you will be able to find, 30mm is just to small and weights to much