I have an inboard and an outboard on my 25' .Previous owner installed the mount on the vertical transom for reasons I dont know,really. The inboard runs great and I bought a small outbd. for emergency/dinghy.I single handle sail and the engine is very important for setting sails ,etc...Theres many things that happen when you will need instant propulsion. especially as you will be learning. peace of mind is sailings mantra!
The time you take to slap on an outboard and all its controls you might as well get the inboard done. It sounds like you should try a smaller boat with the complete package cuz you want to sail and not spend time getting the boat ready. my first boat was a 24' with a rigged outboard that was a pain in the ass to use. It sounds simple but the reality,and for a 36' hunter,is grossly misunderstood.good luck!!