Going to need extended studs. Lugs were 7 to 8 turns before the spacer and now I'm down to 5

I also found that I have a hubcentric ring for the rotors. It doesn't meet them anymore. Can I just shimmy the ring out 5mm so that the spaced out rotor is contacting it? Or do I need to add another ring?

And I'm left with 3mm of hub sticking out for the rim centre. Is that enough?