Hora,
The hope tech v2s have their own rotor, this is because the piston is 25mm which is wider then tech m4 formula r1 etc.
On my dh bike, I run the tech v2 with vented rotors, they are rediculously powerfull and i have no issues with brake fade, and I’m 50% heavier then you. They are heavy though and the xtr brakes on my tranny stop me just as quick and are about 50% of the weight.
Saying that, the tech v2s are 3 years old, (whenever they bought out the tech levers) I’ve spent 3 weeks in the alps on them and many many uplift and push up dh day on them. THey have never been bled, and the feel has always been consistant. I’m also still on the same set of pads.
If you don’t mind the weight then get the v2 over the saints, if you do mind the weight get the xtrs.