Thanks everyone for the advice and suggestions.
I've just pressed the button on an RZ67 Pro II. It was a really good price and I just hope it wasn't one of those "too good to be true" transactions. I'll see and there's always fleabay's dispute resolution process if I don't get what the description said...
It comes with a 180mm lens which should be ok for studio work (I have my eyes on the 110 f/2.8 but not for now...)
I will also be getting either the 50mm or 65mm for landscapes, the former being about twice the price of the latter (but still less than £200 - these lenses are crazily good value!) so might wait for a "bargain".
The question I have is regarding a light meter, partially aimed at
@Pookeyhead . Given I do want to use this for landscapes (about half the point of getting it!) I'm assuming I need a light meter which has spot functionality so that I can use the Zone system. Am I right in thinking the L308 doesn't do this - so I'll need to get a 558 or something? Are there cheaper options which still do 1 degree and incident?
Thanks everyone... I now have you all to blame for getting into this film world!!