To bag or not to bag

[Trailer Trash 2]

I have a F350 super cab duelie we have purchased a new 2980/ 2004 the pin weight has me worried about SQUATTING, the truck will beat us to death on cement highways and we always look forward to ashfalt for the smooth ride, Will my truck need air bags or not? I have looked into the UltraRide suspension and it is very costly, will the air bags that mount above the axel and the underside of the fram work as well ( not exactly) but close? Any Answers out there?

dkr