I search GE stuff a lot and if I run across one I'll let you know. Keep searching ebay under "GE stereo." Also, not sure how far away from home you would go to get one, but there is a website called Search Tempest that lets you search Craigslist sites all over the US. You can limit it to the number of miles from your city, or the whole country if you want.

Something else to try searching is under "Porta Fi." GE made a lot of stereos with the Porta Fi option that let you set up satellite speakers in other rooms using only the electrical outlet. I have seen many GE stereos that are listed as Porta Fi instead because the seller thinks that's the brand name.

Finally, that unit was probably made in Decatur, Illinois. GE had a factory there that made stereos and record players until the mid 70's.

p.s. Craigslist is not like ebay with their searches. In ebay you can type GE and still get listings that were put in as General Electric. Craigslist doesn't do that, so you have to have two separate searches to get results for both.