Yes their are 3 xk-8 on ebay for $200-250 each. One from Italy with 30 watchers the other 2 has 17 and 11 watchers.
Not 1 CDX r77 that you need to make it work. I also have this listed on another stereo forum.
This one was for sale in 22 you might check them out.
https://refurbishedcassetteplayer.com/alpine-7273-cassette-with-3317-spectrum-analyzer-equalizer-rebuilt/
I got an 85ish Alpine amp bridgeable 2ch/ 50w rms? the remote turn on works sporadically. Im not sure if its the wire, the connector or internal. Amp is clean and not beat to hell. I think it will ship in a USPS $18 flat rate box