Hi all, first time posting and after some advise. Just picked up a 34” mono shallow Vee and building my first boat, mainly just for a bit of fun. Previous owner suggested 7.5 - 10cc motor but that seems a bit on the large side? Would a .21 push that boat along alright or am I better off with like a .32 dynamite or .46 Mecoa? Again just after a bit of fun.. and if I can get 40mph out of it I’ll be more than happy! I can get a .28 Go Pro series motor too which I thought might be a good fit. Running surface drive and 3/16 hardware. Many thanks!!