hey fellow model boat fans, im new to this forum and kind of new to model boats. at the moment i have a airstreak .15 monohull boat, but i traded a O.S .46LA for a fibreglass Hydroplane. I got no idea how you set these up and i do not know what size outboard motor to put in. Please help me as tried in another forum but nobody responded.

PS. It is 790mm(31.6inchs i think)which is the length of the pontoons, and it is 340mm wide (13.6inchs i think)