need help, building a bed floor

Hey guys, I have a 70' c-10 and I am getting ready to build a raised bed floor to clear all the suspension parts, I dont have the original floor, nor an original frame, so I have nothing to mount to at this point. I need some pics, or some insite on how people are building supports to hold up their bed, and mount it to the frame. Thanks

i had my bed on horses that lined up with the body lines of the truck perfectly and decided on frame dimensions based on that.

hey thank you for your post, over the time between i posted this and a response i have made bed mounts to my frame and the bed is very secure.... but again i thank you for taking the time to post.