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Having seen your truck first hand, you sir need a SUA. Having a front LT and stock rear really restricts your performance (which is why the ass of your truck was bucking all over the place in the whoops at pismo). There's no sense in dropping money into deavers and keeping the springs over the axle. As I saw it, you have like 2.5" of uptravel limited by your bumps.

I say save the money, get the Giant SUA kit. Its bolt in and gives you a whopping 20" of wheel travel.
http://giantmotorsports.com/index.php?option=com_content&task=view&id=69&Itemid=89

You will need glass bedsides due to the amount of uptravel you'll get from the SUA kit so plan accordingly.

And have your fabricator redo that bedcage and make him do it right. If you are going to keep the low pro cage, you'll need a second surrounding tube and gussets for strength. Otherwise install a crossbar for the shock mounts. Honestly, if I were you, I'd try to get my money back and get the cage that Solo motorsports made. That bed cage needs a lot of help. Also instead of the shock tabs being on the top of the axle (as they are now) I would plan to have them off the back of the axle and something a little thicker than is currently on there (try 1/4" plate). You can look at nelson18matt's build for cage ideas and both Matt and I have pretty much the same lower shock mounts.

Bump cans are nice, but not required, and can be added later. You can use a regular rubber bump for the time being to keep the shock from bottoming out. Spend the money on what you need first.

 

And on a separate note, you have some SERIOUS preload on your front coils. What spring rate are you running? I know you're not dealing with the weight of a front diff, but that 4.7L has a cast iron block, not aluminum. It's not exaclty light. I'm not sure how your front end feels, but you might want to consider stepping up the spring rate.

I still say handle the rear of the truck first though.

 

With your current setup, nothing. You're current uptravel is limited by your spring pack/bumps/fenders. If you go SUA and have the shock tabs on top, you'll be limiting the amount of uptravel you have by a few inches.

 

Typically yes. You will maximize your travel numbers that way. It depends on the fabricator as well though.

 

^What he said.
When I said don't waste your money on Deavers, I meant the Deaver stock replacements. The Deavers in the Giant SUA kit are 64". The Giant kit gets you the shackles, deavers, bushings, straps, hangers, ubolts and bash plates. Quality kit. I have the Giant kit for my Tacoma.

 

Its cool. My posts tend to not make sense when I drink at work.

 

Not like i'm supposed to.
Extenuating circumstances forced me to have a few adult beverages at lunch time.