To interject some facts and personal estimates/guessimates regarding the 716 and 718. The VIN system used on the TDs was an (world) ISO system and the first TD Pinzgauer start 000001 and numerically continued up to the factory shutdown in 2008(ish) in the UK . 716, 718, M or K did not matter. From the indications, the Austrian made TD Pinzes ended in 2000 at around 6000 +/- . The numbers continued when assembly continued in the UK, where the Pinzgauer’s newsletter announced the 1,000th UK made Pinzgauer in the Spring 2007 edition. I would only guess that that maybe only 1200 Pinzgauers were made in the UK. I believe that is a generous number, and there is no reason to believe that there were any “covert” Pinzes made outside the standard VIN system.
But back to the question of Pinzes legal to the US. Roughly 2000 TD Pinzgauer were made by 1990. Some of those are already here as released by the US government and others privately imported, mostly 716K’s and 718M’s..
I would speculate that a majority will be a hardtop of some type, either a K (built on 5 door platform) or MK ( built on 3 door platform). Other deciding choices would be auto or manual trans, and left or right hand drive. There were 39+/- P80 716K with 12 volt systems made for Sweden, non military and better insulated and sound proofed than the military version.
I transformed my first 716K into a 716KM . I too prefer a soft top for my toys.. The Green Grail will not meet the same fate.

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The Trojan Horse... the 1st Pinz used to covertly carry troops into battle .
ATL Pinzgauer XM 718K TUM(HD) 6x6 FFR (aka The Green Grail)