Agreed. Sorry if I misunderstood, I posted early in the morning.
While I think that the PEP kits will work very well (initial impressions of the hardware, layout, and PEP's knowledge), they aren't for everyone. You are talking $4000 for both the front and rear kits, lots of labor to install; if you are paying someone to do it, don't even ask what it'd cost. That's a lot of moolah for anyone to spend on these trucks.
If there were something available for much cheaper, that still yielded good results, they'd definitely be a popular item. Problem is, time invested to design, test, and market, then what profits they would yield a vendor, and so forth.