A sad, but true, fact of life ... paperwork first!
I-9, Federal Employer Identification Number, Workman's Comp., Unemployment Insurance, State or City "head tax," .... all are things that are suddenly relevant to you - even if you only want to hire a couple of guys for a few days, to help dig a ditch!
The next step is to define what it is that you want. If nothing else, you might have an inspiration, and be able to find your help in unexpected places. Then, if you can, recruit the individual (rather than inviting the entire world to apply).
Having help is also a real leadership / management challenge. That person is depending on you, and it's your job to make sure they can work. You're not the 'boss' - you're now in a support role.
