When you posted you were spraying with FF, I was going to suggest you try WoolWax before I read that you actually used it. I think it's thicker and adheres much longer than FF. I know you use a lot of FF, and it seems to be better at flowing into crevices, like spraying inside a frame, but for battling salt covered roads in the winter, WoolWax for the win. I'm in NE Ohio where they add beet juice to the salt brine so it sticks to the road. Guess what else it sticks to?!!! All my junk gets sprayed in October, and much of it still is there the following year, good stuff! For those that don't know, you can use code "IH8Mud" for a little discount on their website
I had pinholes in my gas tank and ordered a new OEM tank 20 years ago (dang, time flies). While waiting for my tank, I decided to try a POR15 fuel tank repair kit. 20 years later, it's still holding and the new tank is still sitting on my shelf. Just another option

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I enjoyed reading about your drive up Beech Mountain. My grandmother used to own half the mountain, my mom grew up there and the family cemetery is there. Sitting in the back seat of a '69 Road Runner and a '77 Monte Carlo driving up that mountain every year is a fond memory. My mom still laughs at me when thinking back to always asking when were we getting to the "wiggly waggly road!"
Thanks for bringing us along on another Tilda Bogue adventure! Glad to see the diamond plate staying! Hahahaha!!!