if you just need scrubs, and what not done.. I always offer like $60 for 6-8 hrs or work..
if it is more skilled, i'll go $100, but i want 2 people to get the job done.. not hourly pay..
I don't care if it takes them 4 hrs or 10...
I also give them something to drink, bottled water...
If they have a car, they will follow you to your home and do the work, then they go away after you pay..