Are you dead set on a Pro? I owned a regular PS4 and then got the Pro and I've said this before but I don't think the Pro is worth it for 4K gaming. Horizon is the only game I played on the Pro where it actually blew me away visually with "4K" (since it's checkerboxed). Outside of that, most every other game the 4K advantage is minimal and I just play in performance mode (usually a locked 30 fps or unlocked fps) over the resolution mode.
HDR is a much better visual feature and I think all PS4s support that.
I also think that, with God of War having just come out and Detroit being released a few days ago, system sales are probably solid right now so there aren't going to be any deals. I'm guessing that'll be a some good bundles during Black Friday.