I got a 12" roller from Amazon for $45 so cost of entry wasn't too bad.
Care to share the part details?
My laminator is not roll to roll, so use leader boards (offcuts from 8x4's - 2mm dibond, 3mm dibond/forex, 5mm Kapa or forex etc) so have an infinite availability of cleaning sheets. Over the years, my hands have become very sensitized to the adhesives in mounting and laminating films, so use nitrile gloves, which turn out to be pretty good at removing dust, particularly if I've just used them to run tac clothes over the table and substrates.