BEGGING for some help/advice (about to rip my hair out)

Hey folks,

I'm new here to the forums as an author of a thread....but honestly it's safe to say I've been researching this for months now, asked almost every single person I've ever worked with or studied with who I thought had a decent understanding of I.T. networks..

Anyway I'd really really appreciate some help so I'll cut to the chase.

Our home is a very solid double-bricked home, so WiFi signals are a nightmare. So we're doing renovations right now, we've been able to get some ethernet connections through the walls from where the ISP Cable Modem and Router will be upstairs, to the respective rooms downstairs, such as Lounge room, theatre room, kitchen, etc...

So what I'd like to do, is to purchase all Netgear products for this job because I've been very happy with them over the years, and Network Genie looks very handy too.

I'd like my Cable modem (physically has to be upstairs in my room as the ISP connection from the Roadside connects there) to plug into a Netgear R8000 X6 Nighthawk. I'm aware this has only 4 ports, so I'd connect the Home Printer, my main PC, and maybe 1 other endpoint upstairs. (The Nighthawk will be taking care of WiFi for upstairs level)

Then one ethernet cable will run from the Nighthawk down through the walls to a spot where I'd like to put in a Netgear Gigabit Switch (8 or 16 port, still undecided)

Now from that switch, 2 of those ports stem cables to different rooms downstairs - the lounge room and theatre room.

What I want to do is to share the SAME SSID (same network and same credentials, etc) in those respective rooms, AND also be able to plug in ethernet devices into it, such as Smart TV, PS4, Blu-Ray, Apple TV (wouldnt need more than 3 ports to plug into) and the rest of the connectivity in those rooms would be handled by WiFi spread from that device.

NOW, what confuses me is, I was very close to buying an EX6200 Range Extender to do this job, but after loads of asking around, calling Netgear Pre-Sales over the phone, etc...I've found out that apparently you CAN'T plug ethernet into the range extender EX6200 to spread the WiFi, i.e. it must wirelessly pick up the existing WiFi signal in the house and then spread it around, which isn't what I want.

So, I called Netgear back for the 12th time and they told me to look at the NetGear WN604 WAP device. With this, can I do what I need?

i.e. I'd be buying 2 of these WAPs (1 for theatre room, 1 for lounge) and manually plug ethernet into them from the Gigabit Switch, and then pushing out the same WiFi same SSID, AND being able to plug devices into the back of it via ethernet? The reason why I want same SSID is because I definitely dont want to stand there with 3 or 4 different WiFi zones showing in the same household, even if they all have the exact same name...

Think of a university, or library, or shopping mall, its just one single WiFi network (I've heard people talking about Ubiquiti UniFi products but theyre quite expensive and no guarantee it can do what i want anyway)

I'd obviously much rather invest in just one product that can do this rather than buying a small 4 port switch AND also a WAP that will do just Wireless signals...

Any help would be greatly greatly appreciated!!

Cheers
Rod :)