Old school tilt bed???

Anyone have any info on doing a old school Z-rack?? I am looking to make my bed lift up, tilt each side, and dump back. I got the basics, just dont know the details of making the rack and mounting it. I have search here, and everywhere online I can think of  for some kind of  write up or pictures and haven't found a thing.

I really need to know the matrials used for the the rack itself and for the hinges.
 
Thanks in advance! 

Looking for anyone that installs dancing bed kits here in cali. I'm looking for an arm type setup like I saw some years ago on a marraoon toyota that was at Reso back at lake perris in 1993-1994 time frame.

Have you trid asking around on layitlow.com? There is lots of lo-lo guys on there, maybe someone will have the info you need. There used to be some kits offered back in the day but I wouldn't have any clue as to where to look now, other than a custom fab shop.