If you have a newish Ace, you probably have a Winegard ConnecT wifi antenna. Set it up with a Verizon, ATT or whoever's plan you want and it will act as a roving 4G cell based hot spot.
With our current Verizon cell plan we can add the Winegard for another $10/mo. Then pick whichever data plan, ie the GBs that work for you.
Verizon may not be the cheapest, but the plan you select does need to provide you with a simcard that you plug into the Winegard.