Trying to sell these

No guess at all but pictures including the amp would be helpful. Condition affects pricing. 

Thanks. I'm not seeing an option to attach pics so included that link in the original post because it looks exactly like the pic there, the radio works and the record player needs a new needle. It has all the original wiring, someone has told me that is a potential hazard because they dry out.

Search completed listings on eBay for your answer

There are 36 listings of sold or expired listings on HiFi Shark, most in Germany, where you'll need to convert euros to dollars, plus one on craigslit.
https://www.hifishark.com/search?q=Grundig+7028