Head rebuild problem, Is this guy a dick head? Options

[DavidSweden]

I am rebuilding my engine a 2.0 from 76. I took the heads in to be reconditioned.
The machinist told me that the valve stems needed replacing, the valves needed regrinding and the seats machined. He said this would be no problem.

He know tells me that the new valve stems are not at the same angle as the originals and after machining the seats the valves sit too low in the valve seats. He says new valve seats are required
As you will understand I am not happy especially when he reassured me that he could do the job no problem.

Is this guy incompetent dick head or is this a common problem,?
Appreciate feed back before I go to the shop on Wednesday.

[toolguy]

At this point, I'd question if you're getting the truth into what the machinist actually did to start this issue. . . but is sounds like when he replaced the guides, something went a little off replacing /pressing in new guides and the valve guide stem hole is no longer in the same 'plane' as it was before. . . meaning the valve is no longer parallel and perpendicular to the pre-existing valve seat. . . The machinists answer is to recut the old seat to accommodate the valves new orientation in the head. . .
Bad for a couple of reasons, the one you currently have with the valve now sitting too low in the head chamber, but more important, if the amount of variation necessitates re cutting the seats excessively, the face of the valve stem will no longer be in the designed location and will have a modified contact with the rocker arm. .
I suspect the machinists answer to replace the seats is what he needs to do to get you out of his shop, and it won't be until you put on the rocker assembles that you'll notice any other issues. .
Are all the valves having the same issue or is it just one or two. . ??