I don't have any info, but I have seen these offered for sale on various vintage stove websites.
I grew up cooking on a very similar GE range & those ovens rock! I have baked, broiled, braised, poached, roasted, etc. just about anything you can think of in those ovens. They are just fantastic for cake, pie, cookie, baking. Unfortunately my mother replaced it without asking me (!) in 2003. The porcelain on the current models is decidedly inferior, as is the insulation.
If I didn't need a gas rangetop, I would put one of these in my kitchen tomorrow.
Just my 2 cents,