we have a custom cover and its tight. So we cant go over the top of the boat.I wouldnt go thru the transom.
I would tie the steering to your drive and use a tiller motor
thanksRigging tube. Available at/through mist boat dealers
that was the plan for the fuel line, that way it cant wear out going through the transom.The new outboard will probably a 4 stroke. If so then just get a bulkhead fitting with a 1/4”npt so that the fuel line can be connected to the outboard fuel hose from a source in the boat. Summit/Jegs has them long enough to go through the transom.
The rig the steering line SD suggested.