Hey Alan,
Comes down to opinion, mine depends on what things are. Frame would be worth more to me if it was a Contender Easy Open. For the barrel, a lot depends on if it is a rechambered factory barrel or a 3rd party custom barrel. Big dif in value there. How much has it been shot? As Walt suggested, unless the scope is the Gold Medal model, it would add zero value to the package to me as I'd just throw it away anyway. What brand dies makes a price dif. Holster doesn't add much, and again depends on what holster even then. So unless it's a custom barrel and/or GM scope, I'd say the price is on the high side for used.
YMMV
Larry