shaved handles on a sonoma/s-10

I finally got my solenoids in today, so i'm gonna start shaving the handles on my 94 sonoma in the morning. I haven't been behind the door panels on a sonoma or s-10 before, and i was just curious before i got started, how much of a pain in the a** it is to set everything up in there? or if anyone has any tips that would help to make it go smoother? thanks