Baptism By FIRE!!! Don't be afraid..Just do it, Uniview is VERY reliable Gear, Good luck.
Are those switches or NVR's on every floor? If NVR's why not go with a central server ? Just wondering.
They are all switches. going to a 32ch and a 64ch NVR. I’m not a expert but it seems to be cheaper and easier. 2nd floor should say nvr’s. Revised drawing