Any local techies in Nottinghamshire?

[Nadrian]

I'm in mansfield currently and since the only shop i know of has just left there building, I am without anyone to repair my gun. It's not a large job just installing the motor into the pistol grip which for some reason won't align. And as it's starting to strip the pinion gear i wish to delve no further as i must be making an easy mistake. So if anyone can help me drop me a pm, thanks
(its a G&P M4 if anyone is wondering)