There is not alot of room for a fuel tank
I am going to fit a KAVAN 4 OZ or a Sullivan SS-4 both fit and I have both in my parts box.
Towerhobbies stocks the Sulivan RST-4 on the plan.
The Wing sheeting is nearly done on mine ........At last
Hmm Wing servo next .....That looks to be a right pain [

] to get right
Johnkpap