The Australianicon Army had a few of these (probably traded for beer with the Yanks, who were "officially" DRY). They were used in the nasty little campaign of mopping-up the remnant Japaneseicon forces left behind the main withdrawal.

My father, who was a WW2 Staff-Sargeant Motor mechanic had a few stories about how his unit in North Queensland "traded" for parts to keep their Marmon-Herrington gun tractors going. The story goes that they had officially traded their M-H's for nice new Britishicon "Quads". These were quickly assessed as "not capable of pulling the skin off a rice-pudding", and the Marmon-Herringtons were "retrieved".

This particular LVT was last seen in 1978 in a "car-recycler" yard near a north Brisbane suburb called Bald Hills. It was still very yellow but the drilling rig appeared to have been removed. If Australian history ran to form, it was probably gas-axed for beer money.

If you go here: Melbourne Tank Museum Auction AFV Listing | Australian Military Modelling Society, there is/was one for sale in Melbourne, along with a few other goodies, including the "assault" version, the LVTA4.

And for the Kiwis..............Heavy metal Buffalo needs a little TLC | Stuff.co.nz

For the Canadians, there is the Flamethrower version of the A4, allegedly called the "Ronson".

UK 79th Div, "The Funnies" also operated LVT4s in all manner of operations across Europe in the last great unpleasantness.