I have another rear trim panel for sale. It appears to be NOS - never pitted, shiny chrome good paint. I'd rate it a solid 9.0 - 9.5 out of 10.
These things are not cheap, and rarely come up for sale - especially in turnkey condition. You'll know that if you ever needed one. I've talked to several people who are asking $4-$5K for NOS pieces, and know of at least one 2+2 owner who paid $3,000 to have his piece restored (it was gorgeous). I am selling mine for $2500 + actual shipping costs.
Feel free to call me at 302 353-0244 if you want pictures or details.