No offense meant by this Blk 98 GT, but since you say you have only moderate mechanical experience, it would be best to leave it to someone who knows the mod motors a better. They can be finiky beasts to work on. Getting the timing on the cams correct is real crucial with the mod motors, and can be a BIG pain.
As for the cams coming with the heads, I'd put money on saying that they dont come with them. If you got some more money to toss around, opt for a set of Sean Hyland cams.
I'm not sure how much stock cams cost but I bet it aint pretty.

Have you thought about junk yard scavenging in your area?
One other thing I'll throw in, I wouldnt deck the heads any. Over head cam engines dont like having heads shaved, especially V type ovehead cam engines.
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64 1/2 "D" code Red Mustang Coupe. 289, C4, 3:1 rear gear. Mallory duel point. Ported & Polished 65 heads shaved .01 with 351 windsor valves, 11:1 comp, 1.7:1 sled rockers, blue wolverine lumpy cam, modified autolite 4100 Hipo 4 barrel. GT Apperance pkg. Period white wall tires. And to many others to list
2000 Perf Red Mustang GT. 5spd. BBK Underdrive pulleys, Flotech off-road H pipe. Hurst T-Handle
64 1/2 red 6cyl coupe. Auto. project car. Mods, Rust, rust, and more rust