Well. it's happening. Helped by the thinning of the ozone layer, UV radiation at my home city's altitude ain't helping and rubber parts are beginning to show it.
First, the weatherstrip around the rear seat flaps, especially in the curve where the open/close mechanism/pushrod attaches to the glass, is cracking and about to flake off. And the weather seal at the bottom edge of the windshield, built into the rubberized part that goes around the windshield wipers and meets the edge of the hood, is also starting to crack.
What's the cost, difficulty and procedure for replacing these perishable parts?
If by some divine intervention, the irksome no-start problem finally goes away for good and I decide to keep the car for a longer period, these parts will definitely need replacement, so might as well be getting ready for the task.