This is a moto/bicycle rack for a F150 that requires no drilling into your bed. Simply use the bed mounting bolts. This is a handmade rack system made by Bolt It On located in the USA. It is high quality, incredibly stout, and can fit under your bed cover.
Mounted it in my F150 and only used it once before selling the truck. Has three different wheel chocks: an angled moto front wheel/bicycle for running your bike angled in the bed (maybe able to close the tailgate); an angled rear wheel moto chock; and a 90 degree front wheel moto/bicycle.
Almost $1000 spent on this setup. Yours for half. Made to bolt down in a F150 but could be retrofitted for your specific use if so chosen.