Feather duster value

Well I was able to take a closer look at it a little while ago. The previous owner had all the rusted floor pans and under body rust taken care of/replaced. He also had the whole underside coated with something(not sure what). I saw a whole list of receipts of the work done and it seemed legit. There are a few small rust spots but very minimal(that i can tell). The interior is in ok condition, bench seats, no ac, manual steering and brakes. The roof needs to be reupholstered. Other than that, interior seems ok. The engine has cold starting problems and cuts out every now and then unless suffeciently "warmed" up. The guy said there was build up in the gas tank and it needs to be flushed or replaced and he said that may be why its cutting out. idk. It definately needs a carb rebuild. The engine seems to be running ok other than what i stated. Paint-wise it needs a new paint job and there are a few dents and dings and scratches in the body. Thats what i know as of now. What do ya think? Im thinking around 2000ish considering it is a "Feather" duster.