Freeride Mountain Bike Build Kits

good all mountain/freeride bike frame?
i have an XC bike right now with only 4″ of travel all around. i am getting into bigger jumps and drops now and 4″ is not enough. im bottoming out on 4ft drops.
i was looking for a frame with at least 6″ of travel. i will be building it up probably with a maverick duc32 fork (or a comparable dual crown fork) and full XT kit.
i want something that is fairly lightweight and has an air shock, im not a heavy guy (160lbs fully loaded) and want something that is still fairly light for climbing. i would like to keep the total weight of the bike to less than 30lbs.
i also want to build this bike for less than $1800, i’ll be buying mostly used off ebay
what frames do you recommend?
I have a BMC Superstroke 07 Model. It has 150mm or 6 inches of travel. I use it for free ride and aggresive all mountain. It does good on the drops you say you take. I picked it up at Jensonusa.com. Also it has good climbing ability.
Losi Lst XXL On Grass Run (78 Km/h)

