No mate he doesn't get involved with touch up pens.
I try to keep my car looking nice and when I dropped it off to him last year I remember looking at it thinking " he wont get that much cleaner than that".
When I collected it (after his 30 hours of work) my gawd what a difference !!.
He owns towels that are only made from things like the North African Gibbons anal hairs and waxes from The Common Fruit Bats testicles.
Cleaning a car is a sexual passion to this chap
He will charge you about £ 250 and he will spend 30 hours on your car and you WILL be happy with the result.
Check out "detailing world" then "Gallery" then look for "P1 cleaned".
He done a feature on my car and you can see the difference)
He had a workshop in Sheerness or will come to your place. People normally give him a bed for the night as he spends 2 full days on it.