Seems that you want the car to be too perfect.

I'm a bit like that (just take a look at my blog to see what extent I go to with my car), but even what you're trying to do is going a bit too far.. you'll always be trying to fix things just because you're not happy with it, and it'll get super frustrating and expensive.

You need to realise that some parts of the car will not be perfect and anyone else would not even look twice at it i.e. steering wheel wear.. my steering wheel has a scratch on it from where my mrs used the car and a ring scratched the leather. Big deal, the steering wheel is there to get used!