A bit of appropriately sized dowel with sand paper put into a drill press will get into that tight spot. No worries. I've used it as a drum sander before.

@Wokks - Yep. He designed it and used my tele as starting point. I think he may have seen Princes cloud guitar some where and thought 'I could do something like that'. Plus his fav guitarist is John5 - he only uses teles. And crazy ones too eg: filled with green goo or his led tele. Lastly, he doesn't like the top horn (seriously, is that that what they are called?) on Strats. So I guess he just went 'I'll have two instead of one - more is better' He wants two humbuckers in the thing as well plus god knows what switching ie:north pole/south pole, series/parallel etc etc. Good luck to him. Half of my guitars electronics he's done anyway.

Oh, and don't let DB read this. He might change his mind about helping!