You fuselage formers are different than mine. I'd have to build an entirely new tank mount to push the tank over the spar and rearwards. I'll see how much the CG changes when I get the gear down.

Your tank looks small for a 70N turbine - whats the capacity?

I did use a Fuji-type bottle in my latest Avanti build and was able to push it back much further than a CM tank can go. The Avanti tends to be nose heavy so this helped quite a bit.