Would you have to pay the full amount of the F150 in the fall of 21? If not, you can keep the hedge and by the time you get the 2nd car, decide which one to keep and sell the other one. With the amount of reservations for the CT it won't be hard to sell it for hardly any loss to someone a lot...
According to the Ford specs it was able to provide 9.6kwh, that is quite a lot, about the same as 1 Tesla Powerwall can provide. So it won't allow you to turn on all the AC's, Dryer and water kettle at the same time, but if you are sitting in the dark otherwise, you'll be pretty happy with this.
As soon as all these electric vans come on the road a lot of parcel delivery vans will probably go to the scrapyard aka sell for cheap.
Not sure how often you go camping but if not much, an old step wagon might be the cheaper option for sure.