Blue vrs. black Beseler 23C II

Are the parts interchangable? I have a blue model with a slightly askew column. (probably worn plus when the counterbalance had been released earlier for storage, the coils sprung out of the tube.) A black column I picked up at a junk store appears to be in much better shape. Can I simply remount the "projector assembly" (for lack of a better word) on the better column? If so, which way would be better, via the two bolts on the pivot or by pulling the retaining clips on the shaft?
Thanks,
Charles Sugg

yes, it is the same enlarger. The blue version was produced as an anniversary special many years ago.