The Willys was an R&R Vacuum Craft resin and came as a kit, but I wouldn't recommend it to any one..... the body was very rough and took a lot of time and filler, the interior bucket needed major work to fit, and the frame was so worthless I threw it away.
As far as the decal's, painted regular testors flat primer grey, glossed cleared body, used micro set then micro sol when laying the decals, then finished with a coat of flat clear.
The carbs I painted gold, then dry brushed with aluminum, then lightly washed with the detailer in black, then flat cleared.
Gotta love those gassers.....