Fair Value Opinions?

[TX '90 ZR1]

I am always on the lookout for items that I might need in the future for my '90.
In my quest I have acquired some duplicate items. Looking for a fair value on the following to a member if someone has a need for them.
1: NOS spark plug wires. In the box but not the plastic wrappers. Box is not in real good shape, but all there.
2: Rear license plate surround. Used. A few scratches where the plate goes in. With plate in place appears good.
3: Spare tire bag in the pouch. In really good shape.
Not sure I want to sell, but thought I would offer them up if it will help someone out.
Give me some opinions.