4K Projector/Player System

Hi all,

I have had my existing entertainment system for over 6 years with a 55'' FHD LCD TV and a PS3. My kids are now over 5 and I think it is now a good time to upgrade. I would appreciate some feedbacks.

My thought at the moment is to keep my existing 55'' LCD TV for daytime viewing and normal TV watching. The followings will be added for night-time 4k viewing:

- Benq w1700 4k projector $2,200 + ceiling mount bracket $80

- XBox One X $700 for playing 4k blueray and 4k gaming, and Dynamix 10m HDMI 18Gbs 4K cable $35

- Brateck Motorised 135'' projector screen $350

The total cost of $3,300 which seems very reasonable. Well below my budget of $6k. I am wondering if someone would have comments or suggestions on the products above. I know most of them are lower end products. Should I spend a bit more on any of the above which will make a significant improvement to the overall experience?

Many thanks in advance