My short bed F250 handled an Arctic Fox 811 well and I know it is heavier than your Lance 830. You need that upper overload spring and stabilizer bar that is provided in the camper package. With just the upper and lower StableLoads, the truck did not need anything else to carry my camper. Only because I tow a heavy enclosed trailer behind the camper, I had to make additional changes.
You need to decide whether you upgrade the main spring pack and suffer with a worse unloaded ride or add overloads that will engage once you have a little sag in your mains.
If your truck did not come with front and rear stabilizer bars, look at Hellwig Big Wig. I found when camping with the TC on the truck, I would drop the tongue jack on my trailer while still hitched and crank it up enough to take some weight off the suspension. If I didn't have the trailer with me, I would lower the rear jacks on the camper to just slightly unload the rear truck suspension to get the same stability. Dropping either of these jacks, will reduce the movement of camper while it is on the truck.
