i did the get the bar second hand, found it on craigslist.... it was supposedly for a dodge dakota....if you look at earlier pics, you see the back bar really high, well NO truck bed is shaped like that, they are all flat.... the front bar was longer, so i reversed and modified the brackets so they would mate up like that, and all four post bottoms hit the ground, nice and level.
once i had them like, i poped off the plastic bed rail covers. they just snap off when you pull 'em up (and one plastic "pop rivit" type snap near the tail gate)
now that i had a metal bed rail under the plastic cover, i drilled a couple holes in the bed rails for the bolts. but FIRST, i plased the roll bar on top the plastic bed rails and marked where they would go, then cut out circles so the roll bars would go down the holes in the plastic and mount to the metal bed.
got my holes cut and holes drilled for the bolts. put the plastic cover back on, set the roll bar down in the plastic holes, and then i ran my bolts up from the bottom into the roll bar.
that "would" be how i'd do it if i did now..... last night, i had those plastic covers on and off about 5 times haha
thanks for the possitive responses!!!!! i worked hard on it and took forever to find it..... thanks all!