There were 82MY Couriers. They were a bit different in that this was the only one to have the key on the column instead of in the dash, and the only one that had a two piece steering shaft- All the rest had a continuous shaft from the steering wheel hub to the worm gear in the steering box. 77-82 were basically the same body style, but 77 had it's own grille with turn signals in the bumper. It was also the only second generation Courier available with the 1.8, the 78-82 had the 2.0 Mazda engine or the 2.3 Ford.
To find one, or for info, check out http://fordcouriercollector.com/ I'm on there as 4x4_Welder.
Body parts are easy to find thanks to a large worldwide aftermarket support. Windshields are expensive, but fenders are about $120 apiece, new repro grilles are available, etc.