In need of some Wheel/Tire Guidance!

[2002_LS1]

So I just bought some 18's for my 2002 Trans Am. I went to the local tire shop to see if they could slap them on with some A/S tires that I'm going to need because I'm traveling up north for work. The guy at the shop basically told me that he was having a hard time trying to two different types of tires with the same tread and what not, I just left... If someone could guide me as to which A/S tires will work for (2)18x9.5 and (2)18x10.5 wheels that work I would be much obliged!

[2002_LS1]

I figured out what I needed. FYI: If you decide to use 18x10.5's in the back you are more than likely going to need wheel spacers until you grind out the bump stop bracket... 5/16's is the plate I used until I grinded the bracket out a little and touched it up with some undercoating spray I got a Discount Auto!