My 10 pence (or cents to you) :)
Hik turrets are a fine choice, I have 1. No or very few spiders, bullet proof build and very neat to install. (IR is poor(ish) compared to the 2232
Use poe on all you cams. 1 cable and you're done.
Buy 2, 4 port POE switch (I use cheap TP Link unmanaged...