E46 M3 - Aluminium bonnet

[Walla80]

I recently had the pleasure of returning to my E46 M3 to find some 'absolute badger' had reversed into the front leaving a bit of bumper damage and a slight buckling of the cross bar between the kidney grilles.

At least this gives me a great excuse to stick on a pair of black grilles (suggestions on where to get a decent pair would be great!)

It turns out that the cross bar on the bonnet needs aluminium welding......does anyone know of a good bodyshop in North London (or near) that has this facility?

Much gratitude in advance.