Hey Kenny, took a look and had a few questions for you, and based on those, I may have some recommendations. Let me also let you know I've never tried 8-Bit, but these questions are just more about general recipe formulation.
How did you decide on this recipe? Did Tallgrass list ingredients they use, or what?
You mean to do a partial mash, right? Because the grains you chose will need to be mashed and converted prior to the boil.
Why didn't you go with any crystal/specialty grain? Not that it's a problem, but I'm curious.
Why 2 Row? 2 Row is a base malt, so usually when you do a partial mash you'll substitute all of it for DME.
Why did you go with both Vienna and Munich? Does Tallgrass use both? They seem similar to me, Vienna is a little lighter in color and flavor, but generally I go with one or the other.
Hop profile... only issue I see is it seems like a lot of dry hops. You're welcome to go for it, but I saw this post about limiting dry hoping to an ounce or two, and I agree. I would move 2 of those ounces of Galaxy into either the last minute of the boil or at flameout.
https://www.homebrewtalk.com/f12/pale-ale-dry-hopping-question-how-much-too-much-384453/