Most of the boxes suggested if I'm honest NEVER turn up on UK ebay.
JVC M70's, Crown CSC 8-970 do - but now go between £60 (when I'm not looking) to £160 (when I am)
I have not heard that particular Philips - although the D8644 is a beast!
My two penneth worth - any (1980s) National Panansonic RX5100 and above normally do the business - and dependent on type are very common on the bay - RX 5250 is EXCEPTIONAL!
If you have an eye for the modern lady - I'd say you cannot FAIL with the Bi Amped RX "platinum" series ie Rx CT/DT range 680-990 - these sound better than almost ALL old boxes (general sweeping statement awaiting come back!

) and can be had for less than 40 quid!
Failing all these - Sharp gf 9191
looks and sounds the bollocks - and fairly cheap (if the seller is not on the pipe)