Don't assume that a 0moa mount will solve any problems you have (or might think you have) regarding the position of the reticle when mounting a Zulus on a rifle
My Zulus has a 35moa mount and sits on a Tikka T1X rifle in 22 LR.
Zeroed at 50 yards, the reticle is just above the centre of the screen - perfectly usable
Arken sent me a 0moa mount and when I fitted that to the rifle instead of the 35moa mount, I couldn't zero the rifle because the reticle was off the bottom of the screen and would have needed quite a bit of shimming to make it usable
My shooting buddy Russ Douglas had exactly the opposite experience with 35moa and 0moa mounts on one of his air rifles
The 35moa mount needed shimming to get it zeroed anywhere near the centre of the screen and and the 0moa needed no shimming and a reticle position almost dead centre of the screen
Also, the long mounts aren't that much longer, most of the extra length is in the part that fits onto the pic rail rather than the part that holds the scope
Cheers
Bruce