network setup

I'm currently on the lookout for a wired router that's futureproofed enough for 2 Gbps dual WAN (Symmetrical) along with powerful CPU, high RAM and built-in storage + decent amount of ports. But comes in a small package and reasonable cost. I'm currently thinking of this particular router after...

We are renovating a penthouse with an area of 4000sqft. The contractor is including Cat6 wiring in his contract. I have identified 7 locations for CCTV and 4 locations for Ethernet port throughout the house. i was thinking to have the following network setup. Source I would be really...