I've been looking for a hull to run electric in Open Mono against the nitro and gas boats. The class can be any size or type of powerplant. A friend had an older 42" Twincraft hull meant for .45 - .67 nitro engines that I think will work. I already have a ridiculously large motor, a NEU 2230 for a 10s battery setup, and a 300 amp Swordfish esc. You can see the size difference next to a 3656 motor. Pretty crazy. I adapted a motor mount that drops in between the rails where the nitro motor would sit. Still have to figure out and install the proper hardware for it and make a waterproof hatch.