What do you think the worth of this 67 is?

[MR. GOODWRENCH]

I ran across this truck two days ago,it has no option sticker,but from the looks of the truck I don't think it had but one or two options if that maybe springs or something like that,it is a 283 3speed,rust in the cab is bad on the firewall,doors and fenders,inner fenders,hood and grill,so basically the whole cab,it has had a camper on it for a while,the owner said it was on it since new,but the bed is perfect on the inside,and the tailgate is great,I don't know if the top has been on it since new but maybe,the truck looks to be all original,other than the radio,paint,and top,and a outlet under the gas cap,has byisply tires so I am sure it has not been on the road in some time,it does not run,it has 50,000 documented miles all the service records,and regestration papers from 67 till 92 are in the glovebox from the original owner,and he pasted away and the truck sat for a while and the owner that has it now bought it from the original wners wife,and he has not touched it,what do you guys think it is worth,I know the tailgate is worth a little,but what do you guys think the way it sets,if nothing is done to the truck soon the leaves were it is setting is going to kill the truck.