As always, it's not particularly difficult to hook up a quality sine wave inverter to a vehicle's battery. I've done it many times. The typical choice used to be the Xantrex ProSine 2000w inverter. There are other choices now.
Yes, I get that it's not 7500W. But it is something, and it is very useful. One can easily operate a fridge, microwave and other items on such a setup. And it's generally no big deal to go "fill up" when necessary.
And, yes, I'd love an F150 Hybrid. But wow are they are pricey.