Stupid wheel question

[neilandbob]

I have a set of original equipment BBS one piece cross spoke type wheels on my e28. I intend polising the lips but I need to refinish the center part too. I'd like to powder coat tis bit as it's obviously very hard wearing.
So, should I get the whole wheel blasted, mask off the area I want to polish and then have them powder coated, then polish the lip, or is there another way, any advice gratefully recieved, thanks in advance.

[Tuck&Poke]

Either way you have to be careful with the center. If you put scratches on the spokes they will show through the powder coat.