The lady from Topspot Kennels has gotten back to me. She is reluctant to take him on, which makes me think that she is probably exactly the right person - if that makes any sense. She doesn't want to be in a position where she is stuck with a suffering dog and us out of reach. The first impression on her and how she runs her kennel is very convincing.
I'll take him there tomorrow morning for a look and perhaps (hopefully) agree to a trial day or two to see how he goes.