Dumb payload question

[biglump67]

So how much weight, can you put in a 1/2 ton Chevy p.u? 1/2 ton=1000lbs. I was flipping thru small truck literature, and a Toyota Tacoma,and a Ranger both have a payload of about 1500lbs. I would think an old Chev would be rated at that at least wouldnt it?
I am going to try one last clutch in my 65 econoline. If it still chatters it is outa here. There is an awesome 72 Chevy longbox for sale locally, about the nicest I have ever seen. There is also a slide in camper, with a pop-top, for a good price. The camper weighs just under 1500 lbs. I was wonering if a 1500 lb camper would be too heavy.
I might look for a panel or an old van with an auto, as vans go so cheap. I still kick myself for not buying this 72 Chevyvan that was for sale locally, $1200.oo no rust California van. I spent more having my engine rebuilt on my old van
Most of the stuff around here ( Michigan) is overpriced rusty old junk.