At the time the G-62 WAS the engine to use. D&B came out and just blew it away with power and smoothness. On the down side, you do have to add weight for balance. D&Bs come w/ a ignition module and we just put large batteries as far forward as we could. We still had to add lead to the nose also. G-62s are an anchor but they are good, reliable engines.
Building is pretty straight forward. The fun is covering it. It all fully assembled, can't slide the fin and stab afterwards.
Build and you won't be sorry. It IS a good flying bipe.