When I had my shop, I had one guy working for me. I paid him a set amount per vehicle, depending on the size of the vehicle and a "bonus" if the vehicle was trashed and I billed the customer accordingly. I was lucky, he was a hard worker, did a great job, listened to me when I told him how I wanted things done, etc. He mainly did the DD's and the dealer stuff, up to a one step/no correction. He was considered a sub-contractor, which meant he had no set hours and mostly used his own stuff as per the law and I gave him a 1099 at the end of the year. I always scheduled everything in advance, so I would let him know when he was needed so I didn't have to pay him for sitting around doing nothing. Like I said, I got lucky with this guy, he always showed up when I need him, but good help can be very hard to find, I went through a couple others before I found him.