You could place the o/b right up front (at the bow, instead of the transom), and steer it directly (with a cycle-type bar or a wheel attached on...
We use a 2stk 30hp Tohatsu outboard (weighs ~120 lbs) for our 13 ft homemade hydrofoil (much like yours):...
Decided to construct our own remote steering and throttle, as we had difficulties finding kits made for our 4 hp outboard. If it's any help, see...
Stunning! Love the outer shape of your 3rd drawing (posted today 11:33), with your 2nd drawings tunnel -- least drag. Question: Wouldn't...