Thanks for those quick reply's

I am hoping he sticks with his price. I was very honest with him on how uncommon of a car this is and he appreciated it and after he had all the info still offered it to me for $2000, I wanted to kiss his feet
Here is the cowl plate info that I got:
12C ................. 0242
ST 67-12437.......LOS-15402 BDY
TR 760-2 .........L-2 PNT
WL 2MGS ......... 3LL
5BY
I don't have the engine #'s yet but will be going over to his house hopefully this week to crawl all over this car for all the drivetrain #'s. The only thing that is totally throwing me is the powerglide and 302? Every place I have read says it just wasn't available yet the cowl plate says it

I found a web site that listed 48 z28's were painted that L code, Tahoe Turquoise, in 1967, 254 RS's were painted that L code also..could that be true? How much would this car really be worth when restored back to its full glory? I am extremely excited to maybe have found a real gem.