There is no CR-8020, could it be CR-2020?
If it's CR-2020 and you can get it for $225 for good working and cosmetic condition. Go for it. If you don't like it, I am happy to buy from you.
BTW, are you only interested in receiver? For $225 budget, I think you can get Pioneer SA-8x00 integrated easily (at least on ePay). If you get luck, you may get SA-9x00.
Sorry, but I meant CR-820