@mdma
Not that I'm the one in a position to state prices, but I will give it a shot.
I would think that a price of 500 EURO, roughly 350 UKP, is the price you would get for such a system. You would still need to wait for the right buyer though.
Part it out, and you will get a bit more, but don't expect to get everything sold, you will most likely get stuck with CDs, CD drives and harddrives.
Sorry, I hope I haven't given you the blues. Just out of curiosity (spelled wrong I take), why are you selling? Because you won't play around with Amiga anymore, or because of an immediately need for cash?