That's why I just bought an 80% lower from 5D Tactical. I have my own mill (Bridgeport clone), and I just want to build one to say that I can. Yes, paid a little more for the 80% than I did for a complete lower from Palmetto State. But with the local FFL transfer fee, the cost for both pretty much match.
I've got the tooling already for the mill, so didn't need to buy the jigs.