I got me Scalectrix black Merc CLK DTM Ltd. I will be running it solely on wood and need to add some weight. The problem now is that after I've removed the screws, I can only get the body about an inch away from the chassis. The wiring to the lights seems to be too short. Do I have to remove the whole circuitry and replace it when I get the body back on or do I cut the wiresand fit longer ones? Any ideas.