i just sold mine. it was a twin screw... i poered it with a cheap remote and 2 540 racing motors ..... i would sugest goin nitro inboard on this boat. as it it one screw should be easy..... a trx .15 pro marine would work great with it good luck on rebuild .... as far as i know i still have the plans for this boat if you would like them let me know we may be able to do a swap or for very lil money involved..