Once I figured out to get the door off, the actual replacement went well.
remove door, using allen wrenches in the holes of the door
remove outer glass - two screws on top, four screws along sides of inside door, two brackets on the bottom
that revealed anothe sheet of glass- held into place by a metal flange at the top (3 screws) and two brackets at the bottom. Pay close attention to how they are mounted for reassembly. They are the same physical configuration, but mount differently to hold glass up from the surface below
That reveals another sheet of glass held into place by two "ears" at the top and a bracket at the bottom.
When that is removed, the next thing to come off is a metal housing on which the glass just removed was mounted. I elected to leave the door hinge springs in place, and slide the metal housing in and out of position. That reveals the glass which needed replacement.
There is some insulation around the glass, but under the metal housing. It came out when I slid the metal out, which moved it from its location, but I think I got it back ok...be sure that it does not sitck out around the glass when you reassemble everything. Put everything back in place, replace the door and remove the allen wrenches. Done. Parts select had the product, and sent it very quickly.