Herman.
Understood.

When I am unable to use the car for an extended period, my routine is as follows:
* Ensure car is clean, polished and suspension greased
* Erect hood.
* Ensure fuel tank is at least two-thirds full
* Increase tyre pressures to 30psi
* Use wheel chocks rather than handbrake
* Once a week, roll car a short distance so it rests on a different segment of the tyres
* Once a week, connect Optimate battery condiioner until I get the green light
* Ensure anti rodent (ultra-sound) device is working.
* Keep car covered. I use 2 bed sheets, which I can pop into the tumble-dryer, if they feel damp.
Seems to work OK.