Hi Batch,
Those appear to be based off the Dahua OEM IPC-HDW48xx model.
At $600 - 15% for 2 for Lorex proper - you will pay significantly more than you can pick up the base Dahua OEM model
While some here picked up some great deals during the BF/cyberweek - and through Christmas season - deals which Lorex had last year - those deals have all expired.
( Yollie got a great deal for a 16 port NVR + 6x 4K cameras at $850, added a couple of starlights and now have a nice setup )
If you are seeing those sold on ebay, then it is from someone who followed the deals I posted on it on another forum and is now flipping it, and they've most certainly marked them up significantly higher than the price they paid. ( last I checked those looking for small mark up sold them quickly )
So, I would recommend asking Andy (
@EMPIRETECANDY ) for a quote on a better model - and do consider a junction box for your setup:
Dahua OEM IPC-HDW58xx ( 5 series is varifocal plus an extra IR "bulb" )
He should be able to get you a good deal on this as well as ship it quickly to you.