Thank you for carrying on!
My first overseas tour I parked my 69 Camaro in the old granary next to the house, near the barn cats, with a cloth of some sort over it, as I remember. We also liberally deployed DeCon on the footwells and trunk. I came home a year later to a holy headliner, but otherwise ok.
Next time, I deployed for a 15 month overseas tour, before I left I stuck it in the same granary but up on wood blocks so that the tires and suspension hung. I didn’t have time to fix the car up at all, but it ran fine and didn’t smell, although one caliper was frozen, but NAPA had it in stock (this was a long time ago), so I replaced it and drove it to my next sea tour.
Third 15 month overseas tour, and I put it in a different farm building, much better sealed. This time I put it up on wood blocks again, but also filled the cylinders with oil, slathered wax on the paint, frame, anything that seemed like it could benefit from wax, liberally planted DeCon, stuffed rags in the tailpipes and carb, and covered it with three separate covers. It was prescient of me, because it was there a long time.
Fifteen months became 15 years. Four deployments and two overseas tour later, I retired and had time for the Camaro again. When I finally pulled it out of storage, I didn’t even try to start it, just trailered it home so i could replace the valve springs before I started it. I changed all the fluids, checked the bottom end, and buttoned it back up.
Each time, after the first, I had it up on wood blocks so the tires were off the ground. I think that helped immensely. I am using the same springs still, 6 cylinder Camaro fronts cut down, and WS6 rears from a second gen Trans Am. I know that doesn’t help you now, but perhaps next deployment.
I’ve had the Camaro 45 years, as it ages it becomes more valuable to me, I’ve kept it up and ready to run, although I no longer have the reflexes to handle it on the secondaries. It’s been part of my life forever. The left door was replaced due to crash damage, the entire front end came off from same crash, and I replaced it with a fiberglass lift off front. The interior had been redone several times, it’s been rewired, brakes, painted, and so on. I have a bit of personal history that spans from college to deployments to retirement, and you possibly could as well.
Good luck, and thank you for carrying on in my stead.