Would you pay more for documentation than lower mileage?

Owner notes beat generic advice here. On the 1968 Ford Mustang in NYC / Long Island, I'd fix the thing you'll notice every day before chasing spec-sheet extras. Then you'll know the next fork. On “would you pay more for documentation than,” that was the fork that mattered for me. If you share a photo of the worksheet, easier to sanity-check. Climate here is different, so treat that as a local data point. Wrote this up on my lunch break.

Write down what you already tried. A second data point from another 1968 Ford Mustang owner helps more than a generic diagnosis. I'd do that before spending real money. Just my two cents from doing this recently. This is the version I'd tell a friend.

Don't overfit one forum story to your car. If it still isn't clear on the 1968 Ford Mustang, a specialist hour can be cheaper than another round of parts. Then you'll know the next fork. I'd want that in writing, not as a promise. Make the next action something you can finish this week. If the story changes I'll post the new data.