Bodyshop recommendations Beds/Herts

[donkmeister]

I need to get some paint repairs done on my car, in decreasing order of importance:

1) small patch of rust at top of windscreen, will involve windscreen removal and refit.
2) repaint a large patch on the (saloon) bootlid where I've managed to scrape through to the primer, possibly the metal, against a concrete beam... fortunately no dents or creases! Might need to have the whole thing repainted though...
3) repair a few areas on the plastic rear bumper where paint has lifted off (combination of age and pressure washer)

The car is a 2004 Mercedes... the paint of this Mercedes era is very hard/resilient (withstands supermarket door dings rather well) and being quite old the paint is likely to be a different colour to when it left the factory so will need matching.

Any recommendations for a paintshop that have done good jobs of this sort of magnitude for you? Preferably around Baldock/Bedford/Stevenage/Hitchin/Biggleswade region, but if there are any strong recommendations further afield I'd like to hear those too.