You're gonna have to wait until Waves release the Waters-Gilmourator Mk2 Dan. The Mk1 was rubbish :)
Awesome vocals on that track, and they both have pretty unique voices so its gonna be a tough one. Taking a stab in the dark, a good mic (there is some serious air and space in those vox), some tight double tracking (vocal sync is your friend), the smoothest reverb you have (Lexicon Pantheon might do if you have it from Sonar 8.5, otherwise it's time to give Rematrix a spin) and your favourite delay is where I might start, but I suspect 90% of it is just those damned voices! Dudes were freakin' brilliant.