Beginner home theater setup questions...

So, next month I pay off my student loans (in this world it seems crazy that it was possible, and in a profession that typically doesn't pay well...).

As a gift to myself and my family, I'm going to use that 'extra' money that I'll have to build out the home theater I've been pining for (being a part of this subreddit hasn't helped, lol). I love games and movies, so that's what it'll mostly be used for.

I don't think my room is setup well for a projector, or requires more than I'm able to put into it right now. Was planning on getting a nice OLED. It's an odd layout that has a slight drop ceiling over where the TV/screen would be. I'll post pictures later.

Anyways... My question is... Would it be better to get an all in one set of matching speakers. Like the Klipsch Reference Premiere set on Amazon for $2k? Or to piece together stuff from various sources. I'm still looking at around $2k for the speaker budget still.

I'm already planning on getting the Denon X1700h as a receiver. Christmas money and best buy rewards will cover that cost completely.

The only additional purchase I was thinking of was replacing the Klipsch sub with a SB1000 at some point too.

So basically... are the Klipsch Reference Premeire set on Amazon good starter speakers for a modest/low budget build? Or could something be put together fromultiple sources that's 'better' for roughly the same amount of money?

Thanks y'all!