Probably depends on what exactly you want the contractor to do, and how they are set up. I’m a contractor set up with an S-corporation, so all payments would go to the corporation, and I am responsible for taxes, healthcare, etc. Be careful of self-employed contractors if you employ them more than a few hours a week, since the feds might decide they are, in effect, employees (and you know what that entails…).
Expect to pay c. $100/hr and up. If you are quoted below that, be suspicious.
P.S. I’m trying to retire, so don’t look at me 