I would also suggest only one router.

For a 16 port gigabit switch, I would suggest this: https://www.amazon.com/TRENDnet-Unma...gigabit+switch

Cheaper than the two you posted, and just as capable. If you decide to go POE, that's a different story, but as Delfuego alluded to, it's better if you want to add cameras and such.

As for WiFi, I personally don't like the mesh systems, as they require wireless uplinking, which bottlenecks throughput behind subsequent uplinks.

Personally, for what you are asking for, I would suggest the following:

Router:
https://www.amazon.com/Ubiquiti-Edge...s=Edgerouter+x

Switch:
https://www.amazon.com/TRENDnet-Unma...gigabit+switch

WAP(s) - Maybe more than one depending on coverage:
https://www.amazon.com/Ubiquiti-Unif...eywords=UAP-AC



This router will out perform all the home routers from bestbuy or similar, hands down, and the WAP will provide good coverage and high speed being 802.11AC.