ORIGINAL: Ridge Runner
jeep, the need for a sloped base depends on how far you intend to shoot, the zeiss if its a conquest doesn't have much adjustment since its a 1" tube so I'd say yes to the sloped base. glen seekins builds awesome bases and rings.
as far as rings, all my 50mm loopys set in medium tactical rings.
RR
I was looking at the DedNutz one piece with a 20moa base. But they only come in high...
And, yes, its a Conquest, so your right not a whole lot of adjustment.
I'll check out the Seekins.