Terry is definitely legit, and has a very good reputation for doing great work on otherwise hard to find pinch roller wheels.
Getting the pinch roller wheel out of the 244 however, isn't really an easy task. Follow the directions on that Dr Zee site and you'll be able to do it, but just know what yr getting yrself into. Like I said before, getting the face off of the 244 isn't as simple as just removing the knobs and unscrewing some screws and pulling it off. You have to unplug the VU meters and then maneuver the plug through the body to be able to pull it off. That's what caused me problems at first.
I'm thinking of this from yr perspective, being in a camper instead of a workbench w/ lots of room and adequate lighting etc. That makes it a little tougher.