Your $2K budget, is NOT adequate for a 5.1 system with receiver included. Simply being honest.
The tipping point is around 5K (not including cables or a basic power conditioner) for what you are considering. 10K ideally for a basic yet very good full 5.x.x system (which could also include a second sub and object channel speakers).
Aesthetics and setup of a 5.1 system are problematic AND you will encounter problems and costs you don't anticipate.
For your budget (negotiated price) consider this:
https://www.soundandvision.com/content/sennheiser-ambeo-soundbar-review
OR opt for a 2Ch system, for now, and build upon it when funds are available. This allows for very good speakers and receiver used (at $2K). Choose speakers that offer matching center and surround, etc. so you can add those at a later date.
The tipping point is around 5K (not including cables or a basic power conditioner) for what you are considering. 10K ideally for a basic yet very good full 5.x.x system (which could also include a second sub and object channel speakers).
Aesthetics and setup of a 5.1 system are problematic AND you will encounter problems and costs you don't anticipate.
For your budget (negotiated price) consider this:
https://www.soundandvision.com/content/sennheiser-ambeo-soundbar-review
OR opt for a 2Ch system, for now, and build upon it when funds are available. This allows for very good speakers and receiver used (at $2K). Choose speakers that offer matching center and surround, etc. so you can add those at a later date.