You get what you get.
If you're going to be shooting expired stuff, you could get some really weird colour crossovers. Printing on expired colour paper used to be fun.
It's all an experiment anyway, right?
It's not that you need pristine transparencies for reproduction and scanners & photoshop are expensive rarities or something you have to pay an expert to do.
I'm not sure I'd go for the surgical gloves, but with:
- a quick wipe with micro-fibre cloth for your hands and the outside of the camera,
- then blow the dust out of the cracks on the back of the camera with an air-bulb (gently - blow dust away, not force it inside),
- possibly another quick wipe with the micro-fibre cloth if the air-bulb removed a lot of dust,
- then into the plastic bag to pull one roll and load the next.
- Watch for getting dust on the leader, pressure plate, etc., and gently blow it out before you close the back.
Sometimes you can use the air-bulb like a turkey baster: instead of blowing dust around until it's out of the back, use the bulb to suck a dust particle and empty the bulb out of the bag. You can develop a technique.
When I had a place to hunker down for a change when the dust was blowing, I also carried a white ripstop bag I'd made with a drawstring. It's big enough to easily put on over my shoulders down to my waist and have room for a camera bag too. A quick pull, and I've limited the dust I'm exposed to.
have a static problem with the dry air. Watch for the film gathering fine dust particles when you hold it in your hands as you load the camera. If so, after you do the wipe & blow of the camera before opening it, place the camera, the new roll, a micro-fibre cloth and the air-bulb into the plastic bag. Rest your hand on the cloth while holding the rest for a few seconds to allow any static charge to equalize. You might have to omit the micro-fibre cloth from the bag for the film switch, or it might be good for wiping the leader clean if it gets a puff of dust. Again, gently with the air-bulb around the shutter blades and the leader seal into the film cassette.
I find that on-playa, a dollar-store pack of micro-fibre cloths make great wraps for cameras & lenses before putting them in the camera bag. My little P&S gets the same before going into a small zip-lock and into the pocket of my cargo pants.