1974 Grabber Hoods did not have scoops. Just making sure you knew that, but it could be an earlier grabber hood, which then yes, there were scoops!
The inserts are easy to find, as most of the rusted out hoods yield a decent pair of scoops. Ebay price is around $40 or so for a good pair. Where are you located? Near Wisconsin?, I'd be interested in another Grabber hood. So to answer your question, I guess it would be going rate for a hood minus $40-$50 bucks for the scoops.