I have a CMP P-51 with an outrunner from Nitroplanes. The .46 size motor 80amp esc and 18.2 5s 15c lipo cost me around $220.00

It yielded a marginal flight for around 4 min, with around 3 min of decent flight. The motor was drawing less amps than what it was rated for with a 12x6 @7,600rpm , so i didn't push its limits. The Batts take 75 min to charge. I'm just posting data and have drawn no conclusion at this point.

I haven't given up yet on electrics.

i have learned that the battery "c" ratings are a bit "pumped up" and impact the performance and battery price quite a bit.

I have 2 Nova/Rossi rear exhaust 60 engines that can put in this P-51 and make it very fast, hidden in the cowl, but these engines hard to get cheap unless you get lucky on ebay

Steve