Hey everyone. Looking at a very high mileage (180K miles) Crossfire. Price as you may expect is very low, but I was wondering what is the realistic life of this Mercedes auto transmission?

I've gotten online and looked for even earlier models of the SLK 320 to see if I could find one, but 180K appears to be a record, at least of Crossfires and SLK's for sale.

Any ideas, and any idea the cost of replacement? I would guess I could swap a tranny from a lower mileage Crossfire that's been wrecked- -