Wired Backhaul for WAX610 and WAX214 Access Points

Thanks a lot, everything is cleared. Seamless network with no roaming between floors and locations is what I need. I can see that unit WAX610 could be nice. I still have a doubts with its speed. 1200Mbit in a 5Hz mode and 80Mhz data part is too small progress on my current Airport AC with its 1300 Mbit. May be will be better to buy Orbi Pro with his AX6000. It can open a full potential of my latest NUC who is equipped with Intel AX 201 > 2400 Mbit, and in future may be will be some devices that will be above WAX610 speeds. I could use also wired backhole in Orbi Pro AX, to create rouming free net, right?

In my possetion I have also the second router without POE+ MS 510TX who fits Orbi Pro AX perfectly, for example SXK80B3. May be you recomend me to wait a bit and buy true 6e (6Ghz) device when Orbi Pro AX with WiFi 6e will appear in the market?