7111127... that is exactly how you want to bag your truck as it is the simplist of installs. The easiest would be to replace the springs with bags, bolt in a c-notch and use schrader valves to air up the bags. When time/money allows add an air management system (lines, compressor, tank, valves, etc.) and you're set.
BTW...
to the board!
For more info search through some of the projects and builds found here:
http://67-72chevytrucks.com/vboard/f...play.php?f=115
And run a search for "bagged" in the Project and Builds section, as well as in the Suspension section. The best advice I can give is to read the posts made by fellow members as you can learn (and save money) by seeing what works and what doesn't.
Let us know if you have additional questions.