www.goodmarkindustries.com page 125
68-69 Cutlass stuff is kinda hard to find, I got 1/4s for my 69 442 from Goodmark, good quality and seem to fit nice. Catalog doesn't say anything about ragtop but they may work for ya. Hope ya don't need a deck lid as I never was able to come up with one,found a few on ebay for 300-400 that where worse than mine. 1970 to 72 anything is available.