Call up some local machine shops. I had my stubs drilled for $100. When I initially explained what I wanted done, the guy was hesitant and quoted me $140. He actually said it was so simple he'd only charge me $100. lol
Only took him a couple days to get to them and I didn't have to pay shipping for them.
I think I left out the specific years for the Z31 hub in my write up on the different 5 lug swap options. obviously an important factor. I'll have to update that.
and just as an additional reference here is the correct hub. It is pentagonal and not round. Hopefully this is will help someone else from purchasing the wrong hubs.
The hub comes off of the 84, 85, 86,and maybe the 87 turbo cars. Whatever year they changed to five lug on all z31's(I believe in 87 or 88) I believe the non turbo hubs for those years(~87-89) are the same as the early turbo hubs(84,85,86). I'm not 100% certain though, so maybe a Z31 buff could chime in.