These are interesting engines Nick, I've yet to see one in the flesh.
The one on the far right with the homemade cast base is a little closer to you, in New Zealand and was freshly painted upon arrival
https://www.tapatalk.com/groups/modelandtoysteamforum/stuart-bb-sold-t4656.html#p37324(I bought it from Mike (Maxwell) off ebay and didn't realize it till I seen his name on the shipping label)
And the one on the left is in Texas with Charlie
And the one I kept came from bigal