Newbie help - Building a system from scratch

Hello all, long time lurker here, looking for advice :)

Due to the Covid-19 situation, I haven’t been able to travel around and test equipment so I’m most likely to buy completely blind. Therefore, I’ve done quite a bit of research. Here is where I’m at:

• Monitor Audio Silver 300

• Rogue Audio Cronus Magnum III

• Rega Planar 3

How does this look? Do you think this would be a good match?

1. What is your budget?

I’m OK to spend about 7k to 10k on this.

2. What are you looking for?

• Floor speakers

• Tube Amp

• Turntable

• Optional: Streamer for Tidal

3. How will you typically be using the gear?

I will use them in a large room for targeted listening

4. What gear do you own?

Nada

5. What do you intend on using for a source?

Turntable and perhaps a streamer

6. What material will you be using your gear for?

Music only - I listen to Jazz, rock, soul, primarily. Some classical sometimes.

7. Are you willing to buy used?

I’m willing to buy used.

Any pointers are welcome :)