Yep, the Camshaft Position Sensor sits in the same spot as the distributor.
But, if you run the Expo cam, I've read of issues with the distributor drive gear needing to be tougher than those used on earlier flat tappet cams A standard distributor/oil pump drive gear might not be up to snuff for the later cams. (think I've got that right)
Anyway, I'm no SBF expert, but I'm not sure there IS a "best" 302. The later HO 5.0's from the Mustangs and Lincoln Mk VII's have good cams, forged cranks, rods and pistons but only iffy heads. The GT40 heads from the Cobras (and Explorers) are far better and the GTP heads from the late Explorers are likely the best Ford ever put on the block. Through the years there are some great pieces but I don't think all the best pieces were every put together in one place at the same time. Probably the "best" package was the Cobra HO 5.0