There are some RF645 bits about and used. Bodies alone are not available anywhere , but body plu 65 and the 45 are freely available in the UK for now.....

I have not seen longer lenses for sale very often at all and would snap one up if I could. I will prob get a new 45mm while I can (what I am going to sell to pay for all this I dont know, but I will have to get hacking thru my remaining kit!) and then wait for a used 100 or 135, whicever comes up first.

If the RF20 flash good then?

Any quirks/issues I should be aware of for the camera?