Hello Jim.
Many thanks for sharing your experience with Jin’s latest rendition. I was pleased to see how close the model looks to an original full scale engine. 
As with most of us stationary engine folks the Lister D type was the most common engine available to the beginner in the hobby. Mine came from a 1940’s Wingetts concrete mixer. Back in 1979. Jin has chosen to scale an early version with both the low mounted Magneto and low mounted fuel tank. ( no float chamber for the carburettor ) Hard to believe that thre were over a quarter of a million of these produced!

Graham.
G'day Graham, I'm truly amazed at the miniaturisation of the Lister-D.
I am searching the classifieds down here now looking for a full sized one (there's a few near me but in very poor condition).
A few little Lister-D modifications I've done to the model -
Made a brass wire hook for the galvanised bucket.
Stripped the black paint/powder coat of the trolley handles.
Made some hardwood handles.