oh, you were just looking for a reason? just buy it if you have money and be happy i understand you can spend that kind of expenses, judging by prices you pay for custom projects that i love, too, but cannot convince myselft to purchaseanyway. I am buying it
i bought it too at first, but i am so tired of midget predators and robocops from HT that a giant terminator was too much. might still buy it back if the price is about $200 or somebody discovers a way to sorten it by removing some spine sections and shortening hydraulics rods in legs, for example. could even put it into this pose to hight the height
but i was too angry about the price when i got to know about height issue.
i just answered your question that there was no concept of "bigger, cooler skeletons designed for field combat only". who says that terminators didn't vary in height? for all i know, series 800 could only mean the construction/alloy/neuroprocessor variant. newest, toughest.
just vary the bones length on a factory and get several heights. the only reason why T2 looked like T1 was because JC took T2 from the same row in a storage organized by 10 identical terminators in a row, where one was already missing (T1). originally it really had to look the same, including haircut (on sketches), but then it was changed for some reason.
(and by the way that's how they should be stored - probably intravenously fed, going through regular maintenance judging by maintenance path in front of them, digitally connected, not hanging in a slaughterhouse, by Genisys standart)
but Genisys model wouldn't work for a 800 series in original universe, as it has less plating, more exposed details, and so fits a description of some previous variant - 600 or 700.