Using two Netgear Orbi AC3000 RBS50Y to increase coverage range

I couldn't find the joowin devices but the Nanobeams are the same basic air bridge setup. 

So for far distances, you want a point to point devices. For the close setup, thats where you want the AP's. 

The arlo's usually run off their own hub (not all of them). Sounds like you have quite a few different vendors in your setup. 

If it was me? I'd be looking at finding a single vendor and sticking with their solution so they integrate together better. I'm usually very pro-netgear but Ubiquity (your nanobeam) makes great stuff and does a really good job of integrating their various technologies into one solution.