That 'machine' is not really a machine. It is a set of large tanks, common to all darkrooms at KRL, and a set of hangers on which Kodachrome could be processed. It is done by hand.
Anyone with the chemicals and the proper re-exposure system could run Kodachrome in sizes from 35mm - 8x10 if they wanted. The process runs nearly 2 hours.
It is even possible to use tricolor exposures on 3 sheets of B&W and then process them to give a set of "Kodachrome" separations that can be laminated together to give a single transparancy. This can be done in any size you wish.