But, "in reasonably good shape" leaves a lot of room for problems when you are discussing a 31 year old car, especially a 31 year old piece of British Iron.
It hadn't been run for a year. The battery was just about flat. The tires were nearly flat as well, and it had been outdoors through a NJ winter.
I've been deliberately taking my time with it - doing some of the clean up first, and reacquainting myself with the marque. The starter would turn the engine, but it wouldn't catch. Diagnosis said no fuel was reaching the carb. This afternoon I acquired a new pump and installed it this evening. [That's a job from underneath with lots of rust flaking all over everything.]
About 9:30 I turned the key.
It caught immediately and idled smoothly.
There's a lot of satisfaction in that.
And there will be a lot more while driving my new old toy on a summer's evening with the top down.
It's a good thing.