You should try owning a '79-82 nose car...i only know of Maier Racing who sells a 3 inch cowl and i don't even like how it looks. For us it's either the GT scoop like i have, the Pacecar bolt-on cowl if you can find one, or possibly shaving the lip off of a '83-86 car and hoping your body work skills can make it work. As for the R hood...i love'em on SN95s, not so much on Fox's because the cowl is so curved that IMO it doesn't flow well with the boxy lines of the rest of the car..but for $75 you can't beat it.
