Unless you are positive that a local shop has significant experience with these heads, you'd be well advised to ship it to Metric Motors. When they get done, it'll be to spec and you'll have some confidence that it'll go another 150K. Too many folks send it to the local place who can get the valves within .003" or so. The oil consumption then goes through the roof and you've got to do it again.

The cost to do the valves and skim the head isn't too great.........it's the prechambers and springs that usually add to the bill significantly.