If you do get a jackplate, you also should get a water pressure gauge for the cooling system. It is useful to know when your motor runs out of water for cooling.
Before you decide on a plate. Take a look at your controls (steering system, throttle, and electrics) to make sure everything will be able to move back 4-6in and up about the same. Often times steering cables don't like to be moved. I would hate to have to cut a hole in the transom to allow the steering cable to reach the engine without binding