Id recommend 320 ISO 7 mins in Microphen @20C followed by three mins in Borax & dry with weight on bottom but it's not too curly.
But will the rebates have normal cine nomenclature so you can tell it from the cine sprockets film?
I don't know what it will say if anythjng, but I would guess it depends on the cost of the cutting, whether they will imprint anything, if they do it will say what other kodak sheet film says most likely, it won't have bar codes, but will probably say "Eastman Double-X" or something.
~Stone | "...of course, that's just my opinion. I could be wrong."~Dennis Miller