I'm wondering what size of spring or air to get and which one to go with. I also would like suggestions on what kind of shock to go with. I'll be towing a 27 foot self-contained camper(hooks to hitch) quite alot this summer but will also be my daily driver to and from work. I'm kinda lost so any help would be greatly appreciated.

1997 F-150
4x4
auto
microtuner
electric fans
flowmaster dual catback
accel coils and wires
fipk
3 inch body lift


Thanx guys and gals
Jeff