@josefstadt it most definitely does not exist, unfortunately. My Great-uncle Pat ran this with a friend, and i think it closed in the early 2000s. A few years before he passed away, i recall visiting him and being engrossed in the setup he had on his patio, using stock and track from the model village (which, as an aside, was rather grandly called Model World). Obviously his widow Jo recalled it too, as after he passed away, she gave me all the stock, etc. that hadn't been sold off. I've received several custom locos on the LGB chassis block, coaches, track, etc. I plan to start building a garden railway in the spring, but if you's like, i can post photos of the locos and stock that's currently in my dad's shed, the rest being stored in my granny's attic. I's be delighted to share Pat's creations with you- they're an excellent example of modelmaking craftsmanship, and have inspired me to build my own custom G scale models.
Also, be interesting to see the "six years later" heading above my post...