You basically have the same "kit" on both of the links. However, STAY AWAY FROM THE RANCHO STRUTS! The KYB GR-2 struts are your best bet. We have had several members here experience major issues with the Rancho's. I have had no issues with the Rancho shocks (and even like the way they look on my rig) but, there have been multiple reports of Rancho strut failures. In fact, one was just reported last week with one of our memebers in Australia.
*edit ... I purchased my lift from the very same web site that you are searching. I simply "put" my kit together and came out cheaper than what you have found so far. Try to search the springs, shocks, and struts individually and you will be much happier!