Edward t is correct in questioning your load center. Make sure you will be able to utilize the forklift you purchase. There is a big difference between the cost of a 3000lbs and 15,000lbs. forklift. I have a customer that makes and installs truck bodies so I have some experience with your type of application and they don't have any 3000lbs forklifts at their facility. I would gladly come to your site and help you determine what forklift is best suited for you. I can only supply new TCM forklifts but also have all makes and models of used forklifts.
You can email me..........tlmorgan94 at comcast dot net.

thanks for the correction. I fixed it now. (and ain't it good we can go back and edit our posts to fix those things)
I think it would not only have been made from kryptonite, it would have to anchored to the floor.
:-)

Woops, forgot the "p" in Kryptonite in my previous post. Just glad my high school English teacher wasn't watching. Today I would have blamed it on spell check.

Me thinks Mr. Ed left off a "0" in his jib boom truck recommendation. It should have been a 15,000 lb or one **** of a strong 1500 lb unit made out of Krytonite.

wow a company doing so well they "want" new... that sounds like music to a bunch of us, I bet.
Part of what you do not provide us with is what we call the "load center" that being just how far out from the carriage is the center of gravity of your load, do you have to lift these bodies longways (from the front and rear) or do you move them as a sideways load (left and right sides)? while a 3500lb capacity might be fine if your load is only 48inches wide and evenly distributed, if your loads are 80 inches wide and 144 inches long and must be moved from the rear and hanging from a jib boom you will need about a 15000lb truck to handle that load.