undecided on wheel/tire combo 90% street, 10% track

[moabslickrock]

I'm unsure as to whether to go with a practical as well as economical setup for a street/hpde combo, like the Billet Specialties Street Lite 17" 9.5 front 11" rear, wrapped in Nitto NT-01's/R888's, 275 front, 315 rear. Or whether to look at an 18" combo. Main concerns are performance, light weight, and keeping expenses down. Secondary is looks and bling.... the 17" wheels don't fill out the wheelwell like the larger diameter wheels, so any suggestions are appreciated ;-)