Thats another cartridge I wish I still had. I many years ago let my Winchester BB 94 slip away.
Try and do a search like at Guns America or Gun Broker to see what they are asking etc. I'm out of pocket right now, or otherwise I would be looking real hard to deal with you.
The fact that it is a Marlin is a major plus for me, just my humble opinion. I know I can still find them in the Winchester BB 94 line up, and held a friends the other week. This is a great heavy timber elk rifle and I would use it hands down.
Good luck someone will be getting a great lever action rifle.