NitroX,
I too would be interested in a Spartan Double in 45-70.
I spoke to the local Remington rep in a shop in Qld today, which prompted me to search about them here.
Anyway, he says they will have them in due course, maybe at least 6-12 months as "they have to fill local orders before thinking about export orders"
He also mentioned that they will be better finished than the Baikal branded equivalents, apparently Remington have specified a better quality of workmanship for the Spartan branded product.
Maybe if anyone interested gives Josh @ Raytrade a call, we may be able to speed things up a little?

450 Ackley