Coming from someone who takes on Dolly Parton's mantra that it's better to wear out than rust out, meaning I'm still in full time work in my mid 70's, I'm hardly qualified to offer advice on keeping occupied in retirement.
But, (there's always a but,) have you got any inclination about the workings of an internal combustion engine? You see, coming from Daytona, as you do, you have the very good fortune of living on the doorstep of the greatest MG gathering in the USA, probably in the world. See here.
https://justbritish.com/event/gof-south-2019-daytona-florida/ It's known as: The Gathering of the Faithful.
On my bucket list is to bring my MG to that meeting.
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All you need to do is find yourself a classic MG and you're half way there.