RE: Zeiss Conquest vs. Kahles scope on TC Omega?
While the conquest is certainly an excelent scope IMO it isn't in the same league as the Kahles.
What conquest are you looking at puting on a ML that costs you $500. A 3-9X40 is only $399. You will never need more scope than that on a ML.
Personally if you got $550 to spend I would put on a Kahles 2-7X36 on top of your omega.
For your QR rings and bases I doubt very seriously that they will transfer from one gun to the other with out having to reposition your rings on your scope thus defeating the purpose you want them for.