Yes - I'd already found that SJS have the tyres (they are the online gods!) but not rims - or at least not on their online catalogue;
@ megaman - haven't really spoken to anyone yet - at christmas people seem too busy for complicated requests - so my 'no-one has anything' comment is really based on trawling of online catalogues. I plan to ring around Pashley / Moulton resellers in the new year - I suppose I thought asking here might save a few calls...
Happy new year cumbent peeps btw!
Huw