Hello.
There is a very reputed machine shop in Varde denmark, reasonable prices, you can trust them and you can talk with them. they can do everything (head, twinplug, regrind cams, line drill, case saver, and more.) They work for some of the best porsche shops in denmark. I use them two times and are wery Impressed.
If you are interested the info are on this link.
MN motorrenovering A/S
regards
Daugaard