Lift, Tires, Wheels.. HELP

Alright guys, ive gained basically all my Tacoma knowledge from TW. So I gotta thank you guys for being so helpful. But I don't quit understand wheel offset. Im in the army, 31B (Military Police) and as you know don't make a lot so, Im saving up all my money to put a procomp 6 inch lift, 35x12.5x20 nitto trail grapplers, and xd795 hoss wheels. Now im having trouble figuring out what offset I should have. I have a picture of what im aiming for so could someone please help me and tell me what offset this is..please!!?? On 4wheelparts theres wheels with -12 18 30 20 o offset and I have no clue what this is or looks like. Again im aiming for that look, what do you think that offset is on that picture?

 

Welcome dave! I'm also from houston...... this d might be the wrong place to post this question. But I'd say go with the -12 offset. Gives it a better stance

 

Ps............stay away from 4 wheel parts!!!! There are other shops that can do the same lift but with better mechanics

 

so you think that wheel in the picture has a -12 offset? what about backspacing? I want it to stick out a little. I don't want to worry about rubbing and all that. THANKS FOR THE HELP THOUGH!

 

BTW nice truck man!! what kinda lift, tires, wheels do you have? looks mean