Those wheels can look good but can also look she-ite. The offsets and widths you be going for will mean less dish I reckon!

Are you going to do anything with the arches to fit wide wheels? Or just leave as is?

Barts wheels be a nice solution alright, as said they weigh buttons even with tyres.

Other option would be sleeper wheels!! As in, smallest oem wheels to fit over the brakes so everyone thinks its nothing special

Heres a touring done: http://www.rogueengineering.com/bmw/2002WAG.html