And that other thread where you showed the link to the video of that Y3 which was converted to scale flanges and DCC. I wonder does anyone else do these type of conversions? And they said that to convert to DCC was just software do you think it is possible to convert other Lionel locomotives to DCC by changing the software? If yes, they should sell the program to us folks instead of a $75 charge for each engine. This way one does not have to send every locomotive through the mail.
S Scale Locomotive and Supply is the only one I know of doing scale conversions, and it's for the Y3 only. And the conversion WILL void the locomotive's warranty.
SSL&S was considering scale conversions when the Mikado's were announced back in 03, but there was some reason it wasn't practical or economically viable.
The SD70's, Y3's and if I recall correctly, the second run of U33C's are the only locomotives that currently have the electronics that will support DCC.
As far as the DCC software, I doubt Lionel would offer it separately if for no reason other than to control their intellectual property. There would be nothing to stop (other than the threat of voiding the warranty) one person from upgrading all his buddies loco's once he bought the software. Perhaps, they'll consider making it available to their authorized service stations in the future.