TS-8-Pro able to provide power to the ac lite. so, no need worry bout adapter.

the setup looks good.

fiber modem -> ERX -> TS-8-Pro -> CCTV DVR + 3 x AC Lite

cat6 only for outdoor. why you need use outdoor cable for indoor device. too rich? 

yes, can setup hypp tv.. u using tm right. since tm using vlan tagging, i think it will works..  never try personally using hyppTv. i might request for decoder for hypptv from tm to try it out.. only hypptv i cant guarantee but for others, yes. no issue.  even using OHANA ISP as well... running quad load balancing with no issue... with 3 different ISP.

AC lite is 25% smaller than the standard UniFi AP with range 122m (400 ft). but of course, concrete and brick house is the real obstacle. normally, if thick wall and want to save cost, AC LR will be the best option.

do you running some kind of hostel?    i will ask my friend to you. if you want proper quote, pm me your name, hp num and address. I just running some this subs forum and discussion, for sales / quotation, i just helping her 

its directly import from US. so, they are not 3rd party. kinda master reseller i think

Am using UNIFI AP, and Unifi AP-LR series.
Nice thin client AP with controller, best of all license if free for controller software.
Overall, controller features aren't impressive but suitable for average SME business and cafe environment usage.
One thing cool compare to average home AP like TPlink, I have been switching on the unit for months, still running stable.

For home user that thinking of getting ER-L, I suggest get ER-X instead. ER-L ideally paired with switches & ER-L only will be fast if you use the hardware offloading feature. You can get ER-X for half the price of ER-L. Anything that require CPU such as QoS or VPN, ER-X will be fine (2x880MHz MIPS32 vs 2x500MHz MIPS64 of ER-L). ER-X does have per port VLAN tagging & some basic HW offloading features added in latest firmware.

Then you might as well use ERPoe-5 if you only need 3 POE ports. If you only need the POE output, TS-8 is abit under utilised. Unless you thinking of getting 5 pack.

The main advantage of ER-L over ER-X is due to routing performance between networks (multiple subnet or VLAN) plus some other hardware acceleration/offload such as IPSec hw acceleration (ER-X also had this but slower). If you want to use it for non hw accelerated function such as QoS or OpenVPN, it will actually be slower than ER-X in that particular task. But I recommend Mikrotik hEX R3 (similar processor as ER-X & can run Dude server) over ER-X unless you need full OpenVPN server or other features in EdgeOS not available in RouterOS. Mikrotik hEX POE is good low budget choice with POE 802.3at support, the CPU is slower than hEX R3 & ER-X, but still pretty decent.