I was thinking about this, and if Round2 was going to issue "Parts Packs" I agree with Kevin that the unique Alaskan Hauler parts (headache rack, propane tanks, hood, bumper) would be a good one, as would the Montone dump body from the Autocar DC kit. (I like it better that the Heil dump body from the PayStar 5000 kit, but that's just me.)