The most difficult part was figuring out how to take the door off as the manual instructions were not clear. Thank you, YouTube for your help. This door doesn't have the more modern release latches. You open the door all the way and stick Allen wrenches into the holes that appear by the joint of the latch. When you close the door to 3/4 or 7/8 closed, the latches are released from the unit and by holding the sides of the door, you pull it out.
The whole replacement would take around an hour, but I did a thorough cleaning of every part as that hasn't been done in a while. With a Phillips screwdriver, start with the inner part of the door and then the outside. Put the screws in a small bowl with a citrus degreaser. As I removed each piece, I cleaned and dried it and place it aside. The next level of screws holding the glass in place is a different size. I put the screws in a separate bowl citrus degreaser. There are 3 pieces of glass for the inner door and 1 large piece for the outside of the door.
In reassembling, don't screw each screw in tight. Put in each layer of screws in loosely, then adjust that piece and screw in tight. Go to the next layer and repeat. Eventually, the door is reassembled.
To put it back on the oven, use an oven mitt to press open the latch so you can put the Allen wrench into the joint hole to keep it propped open for each side. I recommend that you use the same size Allen wrench for each so they are propped open the same angle. Slide the door latches into the holes and then open all the way. Pull out the wrenches and close all the way.