I started with the NAPA 7220 rattle cans on my emp. and now I have switched to the AKZO sold by Aircraft Spruce. Its one to one mix and dries fast. Not cheap but I think the gallon supply will do the entire airplane, Im not doing the inside of the skins but I am doing the alclad parts in the skeleto...

Since this is your second RV I think you would be able to build the emp. kit in about 65 to 70 hours. This pre punched stuff is GREAT. I have about 66 hours including priming but no fiberglass work in my tail kit. This is my second time around, the first RV kit I worked with was #21 RV3.

Kevin