I think I have all the parts for them too. I have found a lot for the traxxas buggy, wish i could find out what it was though.

I can't seem to find some the steering parts, or the front shocks, and it looks like I'll have to rebuild one of the rear ones, or just find one that'll fit. There is a lot I have to go through to find the parts, so they should be somewhere.
I'm also having troubles with the steering part of the Associated buggy, the steering rod is too long.

I haven't really started on it yet, but that is what I am probably going to finish first if I can't find the parts for that traxxas buggy. I also have all those custom cut chassis and steering parts and such that I can slap together real fast and have one running in no time. I am saving right now though to get the E-Maxx and Rustler running, and to get my Stampede back in working order.
I have a lot of transmitters and crystal pairs for them too. That mini carpet racer I don't know if I can use, the battery has been epoxied down, so I have to figure out how to remove it. If I can, I'll probably go buy the cheapest lipo system for it once I find the receiver and steering servo.