We have a Dumas scarab 45 that is sitting with 2 graupner steerable drives and 4 540 brushed motors (2 per drive). Will these drives hold up to more power? I would like to convert it to brushless on a pretty reasonable budget. Would like to run 3s on each motor, but not shire if that's possible. It will mostly be a sport boat so I don't need much more speed than mabe 30 mph, enough to run well on a large lake. Any help is appreciated, thanks