They are cheap right now in Akiba thanks to the fact tourists have not been able to come for six months. Picked one up for 21,000 yen (about $19

with a stick. It was pretty damn beat up with lots of scratches and almost gray in color, but luckily I had a lot of practicing shining boots in my past life. I removed most of the scratches and everything is now black again.
I finished the inside of the stick, and will do the basic RGB bypass mod and recap on the console next. Just for your information: the stick can use LS-56 microswitches and an LS-58 spring for a new feel. Also, if you want to take out the buttons and replace them you can reuse the metal plate to hold them in place on the back, although you'll have to stuff something inside the small gap between the top and sides of the microswitch and the metal as its not 100% snug. I also replaced the start and select microswitches, but didn't have to do anything extra to make them fit because they can snap in all the way. I also used quick disconnects on everything and used a DB15 terminal inside. I made a male end for the original Neo cable as well. The reason I did this was so if I could work on it easier in the future without having to desolder and resolder ever again.
As for the console, it is a revision 6, so I will do the basic RGB bypass, LED install, and possibly a recap.
If I see another cheap AES next time I shop (which will be soon) I will let you know. I saw one for 27,000 that looked decent. You'd have to wait a hot minute for me to ship though because JP Post doesn't ship to the US right now and there is no close alternative. By the time I'm done for the day FedEx is closed lol.
Edit: Actually, I think JP Post will send packages to the US by sea lol