Badly need help (roll cage)

Can anyone show me some pictures of how you put in a roll cage in a 68 FB Barracuda?
My concern is the roof line and the rear down bars going to the back trunk or hatch area. Would like to see how you did yours so I can get some ideas.
I have a 10 point cage but may only put in 8.
Any advice/pics or diagrams would be greatly appreciated.