tsunitx. shocks should not be too bad since you have an LT vs LTZ which has the Magnetic Ride Control. Hopefully you are checking Ebay, Amazon, or Rockauto for better prices for all the work and all the parts you are purchasing.
I'm one of the worst cheap-asses there is, so you can rest assured I will shop for the cheapest price possible.
Without sacrificing quality, though. I usually buy AC Delco since I know they will work and the price is not that much more than store brands.
As far as the rear shocks go, I'll go with KYB Gas-a-justs. Not necessarily my first choice, but since that's what the previous owner put in the front just two months ago, I'll do a matching set. The receipt from the shop says rears were leaking, but he declined the replacement. I checked and I wouldn't say they're completely blown or anything, but they do exhibit signs of leaking. Hence, time to swap them out to match the fronts.