I'd like to get this mini ptz for my backyard, but I'm unclear as to what parts I would need to mount it. Dahua does not list a ceiling junction box model on this cam's spec sheet.
DH-SD1A404XB-GNR PTZ data sheet
My mounting location would be on the soffit shown here, just to the right of the loudspeaker, near the small round vent. There is no attic access above, so I called an installer who said he could get a CAT6 cable run up behind the soffit coming from my basement wiring closet.
I would think I need a round juction box mounted onto the soffit, but none is listed on the data sheet.
I also need to drop the camera down due to its recessed location, see this pic.
The drop would need to be close to 8 inches, as the cam will be aimed outward a bit, and also to avoid the IR reflection. The data sheet does list these two items:

But those two items cost about $90 total (pole is 30" long). Is there a cheaper or better way to finish this install? If not, I'll buy the parts as I do want a clean install.
But wouldn't I still need a junction box at the top to hold the connections? I don't know what box would fit this PFB 220C.
Any advice would be appreciated.
Glenn