I have done that exact conversion with a Premier PS1 GBW body and a Rail King PS2 chassis. The older GBW shell dropped right in place, but there were some lights on the old Premier version that the Rail King chassis did not have. I could have gotten the parts from MTH to put the correct bulbs in the number boards, etc. and hook them up, but I elected to do without whatever lights the RK version didn't have.
Originally Posted by Riverrailfan:
I've been thinking of this since they got RS27 PS3 ones coming out. I would like to update a my GB&W RS27 to PS2 or 3. The shell looks identical to what is shown.