A good flat bed will run ya $600-1000 for a used one, a dump a bit more, and that's for a modern one. It will drive a lot better with the added weight of a bed.
I've got about that in mine but I've rebuilt the brakes and put new tires all around so I know what I've got. Mine also runs like a top (thanks to Spanky). So I guess, basically, like Spanky said that is a pretty fair price if it is in similar shape, but be aware that tires and brakes will cost ya some serious $'s if they need replacing.
Just my $.02.
Scott
