objective:rocker on pavement.....how do i get there?

[83c10wit454]

so i have a 72 sb body on a 68 gmc frame. i want to be able to have the rockers touch the ground. i would like to stay away from a drop member at this time. for the front i have plates and two inch cups and have slam ss-7 bags. i have not decided what spindles to get yet (some suggestions would be appreciated.) what im really curious about is if i have to do any cab modifications? as for the back i have a pb crossmember and trailing arms and wanting to run bags over axle. i hope im heading in the right direction with things. sorry no progress picture worthy yet. thanks for the help guys