I do not belive that 5294 cames in 65mm. so they would have to charge you for an entire master roll, or perhaps 2.
the Kodak Cataloge I have (which is likly out of DATE) shows 5294 in 35mm as 35mmX 400 FT as CAT 7493331 and 35mm by 1000ft as CAT 7493349 Both orderable as Single rolls.
IN 16mm, (7294) they have 100 and 400ft rolls single perforsted, AND even a 400ft roll perforated BOTH EDGES (2R2994) which only a few films are made in. the two edges version does require a order of 20 rolls. Single perf is available as one roll. and it also is listed as Super 8 which again can be ordered as a single roll.