Atlas 2 rail SW's are pretty much gone right now. Especially since they cancelled the upcoming production. We ordered extra GP-7's in 2 rail (they have DCC installed) just so ppl would have some sort of option, if looking for a 1st gen diesel that isnt too large.
http://www.publicdeliverytrack...ory-4/?sort=featured
MTH has done quite a few 2 rail diesels, but they are all 2nd gen or newer, and all road engines except for the Gensets. They've done GP-38's and 40's in 2 rail. They are used as switchers a lot these days, but still considered road power by 1960's-70's standards.
I was pretty upset when Atlas said they were going to kick SW production down the road. We had a lot of orders.