i can get some pics tomorrow as the engine is currently sitting in local outboard shop for sale but no action so i'm going to keep it and adapt it somehow.
i have called clyde outboards and they said you can get a cable adapter kit for the engine so he is getting a price. i don't intend to use cables but i could maybe cut one short so it sticks out the front with some sort of bike lever arrangement as you said.
steering really isn't going to be a problem-the thottle will be. i can get a steering bar made to bolt onto the main lump to deal with that.
to clarify, if i leave the aux as is you can't turn it or tilt it as the tiller hits the A frame hence this problem. even if i do this i will not get full lock on the aux but who cares-as long as i have reasonable steerage i'll settle for that. it is going to be tight regardless but i think taking the tiller off will just give enough room.
thanks polwart for suggestion-i dismissed it in my head but probably the better way forward now.
edit-this is same engine for quickness just now-