I picked up some aluminum - Now I just need a few fittings and get some Proseal - I finally made my mine up to build all three tanks this way. Insteresting inputs though from all sides. I plan to make all three tanks removable so they can be repaired or changed. Thanks to Mark Langford for the firewall drawing - after seeing it I can see that the original design did not take into account smooth and gracefull lines since the transittion from the ply on the fuse to the deck is very sharp and abrupt. I may have to smooth that out so there is a seamless look to it. Back to bed. Bill