A couple of very nice finds there.
We visited E. Hays & Sons when in Invercargill a coupla years back, what a collection. We had the priviledge of them starting up the timber framed engine, it smoked out the store (well almost) before they shut it off. I'll see if I can find the video.
Re. these old motor museums, I ceased to be amazed at the depth and breadth of some of the motor collections. One we visited in Deer Lodge, USA in 2017, a little backwoods town of approx. 3,000 people in Montana, must've had 100's of vehicles, of which about half were on loan from
Sherm & Bonnie Anderson of Deer Lodge Montana, a couple local business people presumably did very well. Some guys have all the luck.
I took over 150 pics in the musuem, too many to post.