Datsundude found a suitable replacement for the high windshield 1968-1970 cowl drain. Here is his info.
Hey Folks, Just want to share this info with you guys…..I found this cowl drain hose at Kragen/Advance Auto part. I brought my old one with me for reference and found one that fit perfectly with ever bends, shape and direct perfect fit. No needs to measure and cut or trim to fit. I installed in my 68. The part number is 61656 made by Goodyear, paid $12.99 plus tax.