What you need to do and what you end up wanting to do to drive comfortably aren't necessarily the same thing. To bring my camper home and use it the first couple of times, I bought torklift mounts and wired up an extension that plugged into my trailer wiring. It was a little white knuckley driving in winds, but it 'worked'.
As it happens, for unrelated reasons I made a list just last night of everything I had done to my truck to accommodate my camper. My list has prices attached (removed), and I was a little surprised to find out how much I've spend when I added it all up. Things were done mostly one at a time over a couple of years, as I adjusted to one change and found there was still behavior I want to tune out.
I have a 2003 F-250 4x4 with a Lance 915 and tow about 8000 pounds behind it.
Airlift 88215 (airbags)
Airlift 25856 (airbag compressor kit)
Stableload A7200 (overload extensions)
Hellwig 7677 (swaybar)
ZeeDee DZ86881 (bed matt)
AFE 46-70022 12-10.25 (diff cover, more cooling)
Torklift F2011 (camper frame mounts)
Torklift F3001 (camper frame mounts)
Torklift S9000 (2) (camper tie downs)
Additional Ford OEM overload leaf (from junkyard)
Vision 81B-9770M0 (4) (19.5 wheels)
Falken BI-877 (4) (245/70/19.5 tires)
Curt 31014 (front hitch for cargo rack)
Hitch Extension (homemade, superhitch knockoff)
Steadfast 10019 (shorter radio antenna)
The next thing I'll probably do is cabover struts. The camper has the mounts and came with the struts, I just have to buy and install the mounts for my truck.
This isn't counting any of the upgrades to the camper itself (solar, dsi water heater, batteries, more 12v/usb outlets, etc).
