Like many others tinkering is not a choice. My closest dealer is two hours away. This car demands constant fiddling and tightening and walk-a-rounds to make sure all the parts are still on.
I keep a generous bag of tools in the boot as well as Loctite, rags and cleaners.
At this point I have no intention to sell. This may come up in the future but I don't sweat the small stuff like keeping receipts for every little thing and copious records. As for Return On Investment I bought this thing to drive it into the ground. This car with over 32,000 miles is starting to show its use. In the meantime every time I drive is like therapy and grin inducing fun! That's my ROI!