Thanks to forum member LarryW for pointing out to me that not counting #9000 affects my totals. I should have explained that there is evidence that De Tomaso started the 9000 series with #9001.
However, while not counting #9000 does not affect the total, there was a #9375 for the GT5-S calculations which Larry is correct that I should have added to the GT5-S total, and so I have fixed my math accordingly.
I made the same error in my GT5 math, but it does not affect the total because #9100 turns out to be a confirmed GTS.
Thanks for your sharp eye, Larry!