Thanks for the replies.
This build out is for a residence that has a large amount of exterior area to cover. Currently there are 6 older analog PTZs at the site along with 4 fixed bullets covering the exterior. 2 of the PTZs are mounted approx. 30ft off the ground covering the driveway near the main house, 3rd PTZ is mounted also approx. 30ft off the ground covering the pool area, another PTZ mounted approx. 15 ft off the ground covering the emergency generator for the residence. The other two PTZs were installed, but never even hooked up (which is a completely separate issue). One bullet is mounted approx. 30ft off the ground covering the front steps for the main house, second bullet about 15ft off the ground covering the garage entrances, third bullet approx. 30ft off the ground covering a side gate into the pool area, and 4th bullet at the driveway entrance about 10ft off the ground covering the intercom and a small portion of the driveway on the outside of the main gate. All analog cameras, going into 2 DVRs, DVRs are isolated between interior and exterior cameras, with only the exterior views being able to be viewed remotely.
PTZs quoted by the local security company ranged anywhere from $3000 up to $5000, both from Axis, and pricing them on the internet was roughly the same. Currently most of the PTZs at the residence aren't even being utilized as PTZs. They're being used just to watch a specific portion of the residence.
I've walked the grounds during the evening and taken light readings on the outside, and we've planned in the budget for additional lighting in the areas that need it.
We're leaning toward going with Salient CompleteView for the NVR software, and I would be building our own NVR servers in house.
We'd be using these cameras for surveillance but only for after the fact forensic data. No live monitoring of them, other than the resident using their phone / tablet to casually view them once in a while. The goal given to me by my boss, was to be able to provide law enforcement with a high enough quality picture from recordings for recognition of an intruder.
Edit: Should have also stated that we'd planned on using the existing coax runs in the home as it's out of the question to run new CAT6 to camera locations just because of the amount of molding / drywall / paneling that would have to be replaced in the home. So we'd have to use some sort of media convertor to change the new cameras from CAT6 to COAX and back again when we got them into the NVR room.