They make a short bench for the backs of jeeps that might work well for you and I believe they have provisions for harnesses...
the first result on my google search brought up these:
http://www.quadratec.com/products/p...x,+24234+40x,24234+30x,+24234+20x&spg=t&srt=h
the first result on my google search brought up these:
http://www.quadratec.com/products/p...x,+24234+40x,24234+30x,+24234+20x&spg=t&srt=h


looks good, dig the seat bracket too..
that is nearly identical to the wheel opening tubes i've been planning. mine will have a flare built in though..... unless i find a burb. then the k5's gettin truggied
I have stolen or borrowed a lot of design elements of my truck from various builds.