You have the cam, use it. It's the best f the three because it doesn't have a ton of duration. Use the 4* advance slot. I don't believe those cams were ground with 4* built in. I'd use the 4* slot anyway. I'd use stock ropcker arms, easy and fail-safe with that cam.

Here are some "of course"s
Of Course you can buy a better cam, however the 474 is close to the Street Hemi grind that was popular back in the day.
Of Course you should degree in the cam, yet millions of cams have been installed dot-to-dot. You just won't get optimum performance, but you probably won't notice it either.

You got quite a deal, so enjoy it without making it into a Taj Mahal build that never actually runs as you follow everyone else's attempt to spend you broke.

R.