Hooking up with a like minded partner works well, I sub-out 80% of my work to other contractors, I'd build a good business relationship with another contractor and pool your resources "employees" together, this way you can simply 1099 them and you get more consistant workmanship, than any agency can give you.
I know, it's a pain in the ass to find someone that will work with/like you, but when it happens it's great. It's kind of like carpooling, not everyone can do it, and most wouldn't want to. but if you can find the right person it makes sense.