The last 6 months for me have been incredibly busy and I haven't rotated my tires. Result = front close to bald and rear has plenty of tread left. I was thinking of just getting 2 new tires upfront, but I cant find a place selling hankook ventus rs2 225/40-zr18. Tirerack has rs2 235/40ZR18 on closeout. Would these work upfront? If not, what would be my best option? Thanks for the help.