RE: marlin guide gun
goos blues, buy ya a 450!!
It's a great round! I just mentioned 444 because I knew they made that in Stainless like you were asking for.
There's a lot of hypeabout the 45/70, there always has been. I've got a couple of 444's and I can't tell you how many people have said "why didn't you buy a 45/70?" because I don't want a 45/70, I wanta 444!!!
(Sound familiar)
Sounds like you know exactly what you want and I'd say get it buddy!