The steps that would be great for you to take:
- round up all your connections and build a list of contractors / vendors.
- talk with each one to see what expectations they have for you using them for individual services.
That will help you figure out what you need to offer to get work out of them on a less-than consistent basis. Talking to see how they handle their documentation of contracts, reciepts, payments, etc can help you learn the business side and decide how to structure all your documents and such.