Difficult to put a valuation on anything without seeing it + surrounding details.
Finish, rubbers, bridge? Complete/extras? Generation/serial/matching box Etc... Will also determine your target buyer.
I would recommend you search the exchange forum and eBay with the criteria you mentioned. If you do the foot work and sift through 50-100 frames similar to what you have, you'll see what didn't and what did sell and for how much - fees - shipping.
Maybe $200? $300? 400?
I would assume the "new" lenses are more of the common yellow and orange than the more collectible red and purple.