Exhaust Help and Pic's

[1977_chevyman]

I have a 77 chevy step side. I want to run 3" exhaust with cut outs and magnaflow mufflers and it to exit out the side by the steps on the bed. Has anyone done this before or have this set up on there truck? If so do you have any pic's of it. I would like to run either an x pipe or h pipe. The reason for the 3" is I am building a 500 hp 383 stroker and it needs to breath.