I have a mid 50s GE wall oven that I haven't been able to get fixed. When I can get it to turn on, I can't get it to shut off without going to the basement and shutting it down at the fuse box. I can't find where the model # is. I'm in my 50's, can't pull it out myself. Want to know how to go about replacing it, but have heard from several people that finding a new wall oven that's the same size is next to impossible. I've been without an oven for 3 years now, on a limited income, and not sure what to do. Can anyone give me some tips?