JimmyB
Now retired - trains and fishing
I think the UK equivalents would be RS Components or Maplins on-line offerings. Then again Ebay has some handy uk based sellers. Looks like we have a fix on the Shay's problematic 8 pin connector, thanks Phil. And by chance also the K-27's, and possibly C-19's tender to loco connector, quite possibly an SM, thanks to The Shed for the link that contained that one.
Looked at RS Components and Farnell, their crimps were around £300.00, which is why I went to evil bay.