Will you forgo the car rental if you go directly to HRH from the Amtrak station? If so, I would consider a towncar. You can get a towncar from Magic City from MCO to Universal for $80 r/t. Not sure if Amtrak is closer than MCO or not. If you still need the rental car, maybe Enterprise will pick you up from HRH so you won't have the expense of getting to the rental car place.