Thanks for all the info Jack and fishscale!
Yea my truck is a 1983 Chevy Grumman Olsen P30 17.5 ft long. 2 deep fryers, 1 char broiler, and 6.5 ft hood. The last owner was a tasty cake driver then decided to get into the mobile food industry. It bounces just driving down the street so I think the springs are pretty shot. 213k on the chassis too. You can see it sagging here.
Unfortunately no tracks here in Delaware (Delawhere?) pretty boring here lol. Just like Fishscale my window is about 36inches up from the truck floor. Been doing mostly catering from it since its not fully wrapped yet, but i notice the height of the window because I have to jump and grab the awning to close it lol. Depending on funds I might do the air bag route b/c I want keep the truck for at least 2 years before I upgrade to a bigger one. Again thanks for all the help guys!