Chezuki speaks with great wisdom. lighter springs(HBI), trigger shoe, safety selector, and charging handle are must have changes.But... if you just really wanna do it...
1. Do you know if you have a welded trigger pack? If you do, you can drill out the weld but it’s a pain in the ass (I did mine). CZ will send you an entire new lower if you have a welded one, you just have to sign up. CZ-USA Scorpion Trigger Swap - CZ-USA
2. Where abouts in Indy are you? If you don’t have the welded pack (or once you get the replacement) I’d be happy to help with the install. I highly recommend getting the lighter springs from HBI and possible a different trigger shoe to put in at the same time. Dramatic improvement over the stock trigger.