Hi Hisrudeness,
I noticed that one on ebay, will keep an eye on it and see how it gors. Theres also 2 others at over £580 inc postage as BIN
Looking at sold listings there's a few sold examples
£111 but had crackling on the audio (which on reading up can maybe be fixed with a spray)
£103 with a sluggish rewind
£170 but doesn't turn on
There's also one in Israel that sold at £641 but I don't think the sale concluded as its been relisted
Theres a few listed in other places such as Gumtree, Facebook Marketplace etc but at either crazy high prices like £475 or has problems (£70)
I've got a few months to sort myself out and would probably go for a 6464 or 9191 if I can't find a 575 at the right price.