E-Flite 60, 16x8 prop, 2 3S3700 20 C packs in series, CC60, and a 5 cell rx pack.
I cut out the fuel tank mount and installed the packs in an upside down V position, right behind the firewall. The rx pack sits right on the hump under the lipos. Rx pack is held by velcro, the lipos actually wedge in between the floor and top of the fuselage, I use a piece of foam behind them to keep em from moving. Like I said mine came out dead nuts on CG wise, so I tossed the weight and box in the junk box of left over parts I have.

The 60's over kill but sure is nice. 1/2 throttle and she's light on her feet and off the ground.