Timbo, first thing you should do is buy a good Hudy 2mm wrench. Now as far as the stripped screw holes go. If you don't want to cut into your chassis, you can try this. It's worked for me in the past. It will require you to dissassemble part of you car. If the stripped screws are not on the same bulkhead, remove all all the bottom screws from the bulkhead so that only the stripped screw is left. Remove everthing on top of the chassis so only the one half bulkhead is left. Turn the bulkhead counter-clockwise. That should loosen the screw. You should still be able to get enough traction with a good wrench to unscrew it from there. Before you put a new screw back in, put a thin layer of CA in the countersunk holes on the chassis. It will keep the screws from sticking. Also, aluminum screws will fuse into the bulkheads. Use titanium or steel screws