sp6x6 I have everything that you mentioned except the TMR recital. How did you make the zero stop for your mark 4? I think that I will just keep the Leupold and just save up and buy a PST here in a few months.
On the mark 4 , the turret dial climbs, you can simply put shims under the dial. I made some once that was just butter lid plastic and worked ok. But on my main rifle a put a small bronze washer as a contact, under the dial, and in the dial cap installed a small allen screw to fine tune the ZERO. I have it so it can just go past a hair. Also on my vari 3's, I have 20 moa rail,so closer to bottom, on my range card, I note turns to bottom for dial, as reference, 1 1/4 etc. I had my high school kid mess my dial up twice on speed goat hunt, for him.
Don't forget about the Sightron SIII 6-24X50 LRMOA. They have 100 MOA of travel, in fact the last one I dialed before I sent it out had 108 MOA from top to bottom. For my eyes the eye relief is way better on the Sightron especially on higher magnification. Sightron SIII 6-24x50LRMOA