I came across an old kit of a Laser 3D, it has been hanging in the hobby shop for a few years. It was the only non-arf in stock. They gave it to me at 50% off just to get rid of it. Anyway it is almost done. I will be converting it to electric and my question is what setup should I look for, motor, batteries voltage. The plane is alot like the U-Can-Do .46 and should be around 6lb. I like the AXI motors, not a big fan of E-flite. AXI has the 4120 and the 4130. Is the 4130 overkill or can a 4120 hover at half throttle? Also, I rather have two packs wired together then one 22.2v pack. Can you use two different cell packs, if so, do the mah have to be the same?

Thanks
Kevin