Bed weight?

[swamp rat]

I am looking to get an idea of what a LWB with steel floor weighs? I am getting ready to remove mine with my cherry picker to work on my truck and the weight on the picker i don't beleve to be a problem, but i do have to do this in my side yard with damp ground so i am just wanting to make sure i have proper support under the cherry picker so i can roll the bed back away from the frame without having to stop, set the bed back down and make an stronger wood floor . I read here that 4 guys can lift one so i'm guessing maybe 300-400lbs. am i close? or is it around 600+? If its around 6-800 then i think i'll need toi reinforce the setup i made.. Thanks.