I've had multiple sets restored domestically here in Australia, and they turned out sublime. However, the clock, while rebuilt, tends not to hold time well as I unplug the battery for long periods of time, so it becomes uncalibrated. Surely there are a few people in the USA doing them as well?
The gauges were fully stripped down to each gear, the shell blasted, zinc coated, all gears and faces cleaned, lubricated and put back together perfectly. Have another two gauges I'm waiting to get back right now, and the original Z49 KMPH cluster in my Y84 has been perfect since I had it rebuilt by this guy half a decade ago.