Wow this thread is an oldie! @BobbyD the LionChief Plus 4-6-2 Pacific is a good runner with can motor and sound. The domes and front-end details of the boiler casting are pretty similar to the Wabash (which itself was derived from the postwar 2055.) You could probably create a "10-footer" clone with a good custom paint job. In the special case of your 672, you would also have to figure out how to transplant the smoke deflectors. The C&O 8603 or Santa Fe 8900 from FARR set #1 would be very easy to fake.
I've been hinting to Lionel for a while that they should make an "MPC Celebration Series" targeted to us boomers and Gen-Xers who grew up with MPC. With the LionChief Pacific and 726-style Berk they have decent stand-ins for some of the most iconic sets. I would love to see a LionChief Plus 726 in Chessie paint!! They also have Geeps and Legacy F3s with postwar styling as used on the Neil Young Signature Line.
To my eyes, the LionChief Hudson boiler is noticeably different from the 8600 (originally 2046), so I'm not sure what they would use to recreate the Crescent, the Blue Comet, or the Alton Limited. Still I think this is very doable and a potential moneymaker, so I wouldn't be surprised to see it at some point.
