The 053 in it's present condition is a unique car and too neat to convert back to an RPO. I hope we can save as much of the present interior as possible. The outter sills are marginal, and we have been exploring ways to fix them without tearing down the car (remember my posts about a month ago?). It would then be usable for special trains, not on a regular basis, but healthy enough to last another 100 years.
It's actually been a "cook car" longer than anything else, and I believe the goal will be to restore it to how it looked in it's later years of use in that configuration, which would mean real passenger car trucks.
I'm not it the loop much these days, so these plans might have changed.