Most bike shops don't know much about facing. When I was a mechanic in the '70s, I don't think we even had a bb tap, and definitely no facers. The LBS has been named one of the top 25 shops in the U.S. a number of times. They face every new bike they sell. And they sell a lot of internal cup mtb's nowadays.
I might possibly have a collet setup I can use to shorten tapered ht. Have to check it for that