Dish comes with the lower offset wheels.
From higher to lower offset, look for wheels to fit:
E30 BMW (+24 stock)
E21 BMW (+18ish stock)
Gemini's (-ve offsets easily available)
BMW wheels are 57mm centerbore though, so you'll have to look for aftermarket wheels or get them bored out.
Good luck, took me about 4 months to find the right wheels to fit my guards (15x6.5 ET13; 4x100 (factory option BBS for E21). But the 14x6 versions of the same wheel pop up fairly often on ebay for pretty cheap. Not heaps of dish though, as I was looking only for sizing.
59mm is a pretty big centerbore, so you'd probably have not much luck with factory wheels.