BBS RS 258 - 964 Fitment Question

[A 911 Dream]

Good morning All,

I am considering a set of BBS 257/258 for a 964C4.

My question, can the outer lip on the rear (9.5"x17" et 52) be changed to add more lip to the rear? (is 0.5" possible?)

I realize the 964 hubs do not allow for deep lip depth, but if possible, I would prefer to add more depth on the rear lip.

Thanks,
Chris