Thanks, I bought some Atlas boxcars & reefers from ‘letten704’ which seems to be Anoraks Anonymous as they are just that, anonymous. They are ok but will need rewheeling as they have the old quite coarse plastic wheels. Which reverts to the lack of detail parts, Peartree lowfit  wheels at £8 set will substitute,apparently. 
 

The Facebook North American modellers in UK group has been the most useful so far with a couple of the long-term layout projects on here and FB as inspirations.

Dava