I think a compact pickup like a Ranger/D21/Hilux would be very cool. All 3 have SUV versions (Bronco II/Pathfinder/4Runner). Upgrade parts could be axles/control arms from the D-Series trucks like owners do with the Nissan Frontier and Nissan Titan in addition to the standard items. Early models could have solid front axles like earlier Hilux models did. Later models gaining independent front suspension. The drive-trains from the Hopper would be a perfect fit in my opinion. I know Beam devs like to get two birds with one stone with their platforms, this would be a good candidate for that.