You don't have any really good places to jack from on that truck**. The Lift Mate attachment with the web straps and hooks that goes in the wheel holes might be your best best for lifting, but you'll also need a jack stand to go under the axle so you can remove the jack and then the wheel. You really need to use a jack stand anyway. You do have some, right?
The length of the jack will really matter most if you lift from a place that has to unload the suspension before the tire leaves the ground. Go longer if you can. Be careful, though, because if you lift from a side and the jack or the truck shifts then the upper part of the jack will meet the body.
The red plastic base is nice to have but you can make something similar out of 3/4"-ply or layers of 1/2". Also get the handle keeper if you can't figure out how to use a velcro wrap around the handle and through the jack.
The Extreme model comes with the attachment for the top to secure a chain, attach a D-ring or use as a spreader. You can do all but use as a spreader with the basic model. I've used mine to pull stumps way more than lift my truck. Never used it to spread.
Somebody gave me the base plate and Lift Mate. That was some $$$. FYI...a factory bottle jack does NOT fit in the baseplate cutout.
Those tires look pretty new in the pic. Why the change to 33's?
**because of this, you might want to get a bottle jack for general lifting and use the high lift for its other uses (winching, spreading, etc).
--john