if you want the 18's in a CSL look, I think yory only option at the moment is perhaps the BBS RC which is available in 18 and is about as close to a CSL as you can get.
you might want to look at the RG-8 over at Evosport, I think they are taking poe orders on the 18's at the moment.
super light and super strong, something like 18lbs F and18.5 R.