This place was the answer to my puzzle. The trick is to open the hinge more than you think you need. Until you see the hinge holes, you will think that there are none.
But, If you use a big screwdriver or something else to ledge the hinge more open (yes, it does open more than you think), you will see the hole, and you can pop a small nail or anything to hold the hinge open. Put the door back on the oven.
If you can only get one hinge on, open the door completely (using the drawer under the oven to support the door), and repeat the process for the second hinge. You will know you are done. What a damned design.
dave, June 2021