Going to post over on the Northumberland section - if anyone can make further progress based on this new info, please reply there or here.
If you post the same query in more than one place, may I please suggest that you decide which is going to be your 'master' thread, and after putting in links to that thread you lock all the others so that all replies go to the same place? Much easier to keep track of, and avoids helpful people wasting their time looking up information that you already know.