on your New Vessel!
If it's your Rig, and you're the one driving it, I'd certainly get the Running Boards, if they'll help you get in/out of it easier.
You're 5'4"... so how tall is your Husband? How hard is it for him to get in? I'm 6'1", and my Wife is 5'2", and mine has Running Boards. I also have Grab Handles over the Doors to make getting in/out easier. It shouldn't be a chore to Enter/Exit a Jeep.
Best of Luck!