That's a handsome little pick up truck.
Chrysler built one in the early '80s based on the Omni/Horizon fastbacks. The pick up truck versions were called Rampage (Dodge) and Scamp (Plymouth). The Scamp was only built in 1983, I had one (we had a second one for a while!), I had it from 1983 to 2000, it was a fun little vehicle.
Good luck with your Morris Mini.