Khoi Bung Phe

Dear all.
I purchased an 05 cl65amg that did not come with amg stock wheel (the style 4.....if anyone has one and is looking to get rid of them please let me know). I want an authentic amg setup for my car,so now im looking at the 2012 SLS amg set....that has a very little difference as compare to my stock setup. I wonder I would be ok as far as fitment and ride quality if I was to buy the 2012 sls set to put on my cl65?
The specs are below for my 05 cl65 vs 12 sls. Please help me out to make the decision.
Cl65:
Front 8.5×19et44
Rear 9.5×19et60
Vs
SLS
Front 9.5×19et60
Rear 11×20et68
The front of the SLS will fit my rear cl65 perfectly....but seem like it is not the case as the sls set is a stagged set up.
Helps are much appreciated.