What a show again bro, stellar job/result!
Regarding the photo periods, with about 30-35 days VEG you prob end up somewhere between the mark you are saying, both of them have around 10 weeks of flowering on average, but there are faster phenotypes to be found, so depends a bit on what you are actually getting.
If you really want to go all-in with them, I would say extend the VEG a bit, in comparison, when I grow these plants in 1.2 x 1.2m tents with a single plant (a 4x4 in feet) I usually VEG them for about 8 weeks (6 weeks to fill up a 1x1m), grow them in a 50-100L container, full organic soil/coco grow. Ofc your hydro method will probably speed up the growth massively, although I'm probably using stronger lights that will make up for a bit during flowering, how strong at the lights that you are going to use and what size tents are these ladies going to be in?
Maybe the sweet spot will be around 42 days of VEG for you?
I'm really looking forward to this run buddy, very stoked to see how this will play out!

And I'm very grateful you are doing this with my genetics!

Cannot wait to see that 420autoflower field of buds appearing in a few months time, good luck and enjoy the run as always!
Massive!!