Kerbike
Two-wheeled computer-guided and stability assisted rover. 0.362t, had it going 11m/s on the runway.
RTG for power, mounts to a Jr. docking port.
27,192 Funds, most of it the RTG.
You want to bring an engineer to fix the wheels when they inevitably break, and it’s almost impossible to control with a keyboard; simultaneous precision lean and turn are needed for true control.
The craft file includes a lander can mounted to the bike for ease of launch.