Well last night I happened to pick up a Losi nitro. It's an older 1/10 XXX-NT RTR (not II) with a Mach .15 engine. I think most of the truggy is stock except for the graphite suspension members (with extras). I turned the crank and the piston moves up and down freely. Overall, it looks fairly well taken care of. Inside of the tank is clean, fuel lines are clean, servos seem to be fine, radio should probably be replaced but other than that, I think it was a good deal. I only paid $40.