Can anyone here set me up with the accurate size of what tires I'm going to need?

I have the tire I want
http://www.intercotire.com/site31.php

Super swampers !

Just need to know which size I can get... Did a bit of research on tires and sizing but I'm still stumped xD!

I have the 32" stock H3 Tires right now...

EDIT: If anyone can answer that question... What size rims and what lug pattern am I looking at?

 

You can run up to a 35 inch tire.

You need a bolt pattern of 6 x 139.

And an offset of around 10mm, or less if you want them to stick out.

 

NOTE: also planning on getting that leveling kit in the front

http://www.stallioncustoms.com/h3-hummer-lift-kit.html