I put the feelers out on the stage coach too and this is the reply I got. It might help with the horses at least. Hopefully the OLD mates will remember.
"Re, the wild west situ'. I can remember the horses, taking the kids for rides around Gladstone St. That was their mustering point, along the narrow lane opp' Morpeth Road infants entrance. Can't think of any stagecoach at that point in time, but, If I wasn't looking for one, there you go.
Will seek out some of my OLD mates who lived round that area at the time, and get some definite leads on the subject.
The horses in question belonged, I believe, to old Bailey, who was a gateman at the south harbour. They were tethered, [or free ranged] on the field behind us, which is now Solingen Est, where the newt pond used to be".