I think you meant to say "RS1325", the SW1200RS is "the same thing" as the Life-Like model (ducking for cover) 
I'd hate to see effort wasted on such a rare bird as the RS1325, regardless of how cool that model is.
You know, if someone did a completed shell for the SW1200RS (by completed I mean painted) that would drop onto the Kato NW-2 (with flexicoil trucks) I's be elated. Even if it cost what a complete locomotive cost, it'd be work it to me.
Of course, same for my oft requested GP40-2L. If a complete shell was available decorated that would drop onto the Atlas GP40 chassis, i'd jump for a bunch. If frame mods were required, no problem.