Ended up with an extra BBR shock spring - NIB still wrapped in plastic. $110 plus shipping from BBR. I’ll do $100 shipped. It’s this one: http://www.bbrmotorsports.com/Products/Products.aspx?Prod=660-HCR-8005
I posted what I had available at work. You asked for length also. If I have time this weekend I’ll get ID when I’m at shop.