It's odd that it's 400 dollars cheaper on my browser,
If you're not trying to win the next enginemasters it seems like a solid enough choice, if you just want a complete solution.
You could save quite a bit of money by simply buying a GM crate engine and sticking a cam in it.
This gives you everything in one and you don't have to do alot of thinking or sift through the ridiculous ideas of internet people who want to spend all your money for you lol. it also bolts to your transmission and uses everything you already have, fuel system, accessories, etc.
On the flip side, like I said, you could save a bit by doing the GM crate, but to be honest, there aren't alot of people out there burning chips anymore, so if West Coast is offering one, that's another point in their favor, imo.
LS swaps are cool and all, I have one, I'm doing another, but there is alot of fiddling, wiring, and making thing's work. You seem like you want a plug and play solution, and I think you've made a pretty solid choice here. The one caveat is the 91 octane requirement. Running premium add's up in the long term if it's a daily.