I've hauled 2 beds home that way--I had an 8 foot fleetside and was buying the same type bed to replace the rotted ones on the trucks,and one seller had 4 strong friends handy,they just lifted the other bed upside down and lowered it over the wood stakes I brought with me..
Strapped it down with a ratchet strap,and off I went..
The other guy I bought the other bed from had an engine crane we used to load it,but it didn't go quite high enough to get the bed up higher than the stakes, so we laid the bed on mine without the stakes,then had to lift it up a foot or so more ourselves,to get the stakes in the pockets,we lifted one side at a time..
One other bed I bought ,I took my bed off my truck,then drove it to the guys house who sold me his,and we plopped it on with 2 bolts to get it home..the bed was off an '80 pickup,and I put it on a '71 K1500 GMC,it looked a bit weird,but the bed bolt holes lined right up and the tail light harness plugged right in and worked too,much to my surprise!.