Hi Bob and welcome to this forum. So next year will be the 20th anniversary when your Alpine became an ex? Well I guess you are lucky to have other vintage cars to drive, but they must be really good cars to forgo the 'pine? Maybe a nice Mustang convertible or an AC Cobra?
I drive my car most days, and when I park up, people, of all ages always come over to chat and admire the car. Its a great ice breaker.
The booster is really a poor excuse as there are plenty of options for sorting these out. If you want to keep the original one you could get a repair kit (as I did), but non-original replacements are also plentiful. You could even bypass it if you needed to (if SoCal laws allow?).
Do let us know when your Alpine returns to the road, and tell us what you think of her after all this time!