This is truly one of the most surreal IPVM discussions ever.
I'd pass. Too small of a job, too big of a hassle - bad combination.
I was asked to sell a PTZ for tracking UFO's in the sky. The goal was to aim many in the air and alarm when a UFO was seen and track it. They wanted assurances it would work. End of conversation.
Payment in full upfront, no refunds, warranty on defects only (with a ton of stipulations), and all camera adjustments after the initial installation are billable.
If that didn't scare them off (I'm sure there's a ghost joke in there somewhere), then sure. If nothing else, it would provide years of entertainment in retelling the story.
An installer looking to earn street cred in this vertical would sell cheap CCD box models from couple years back, and set the manual iris to f/5.6 or darker, max out the Gain and saturation, Sens it up 256x or so, and Voila!, ghosts even in broad daylight!
I've a few ghost hunting friend.
They love their thobby often producing interesting site exploration study results.
Like most niches, aligned technology and costs typically outweigh budgetry desires.
We protect the old Spanish Missions of California and you don't need anything other than cameras with IR to see what I would call un natural events. Smoke or spheres with a blue light radiating in them is common.
Our best video was a camera over one of the original pastors bed and during daytime a shadow the shape of a human comes over the bed and the thick grey blanket folds back smoothly in a triangle and the shadow goes away. Does it different times of the day and different days of the week and never when there is a tourist in the room.
Sure I would.
I sold a CCTV system to a wealthy lady one time who swore that someone was breaking into her home and stealing the magnetic catches off of the kitchen cabinets, LOL.
She called back a week or so later making demands that we move the cameras because they had stopped doing that and now were rearranging the pine cones under the tree in the front yard while she was sleeping.
Turned out her husband was the head honcho at the local Mental Hospital, hows that for irony?
Its not up to me to decide if someone has a need or not, if they request a specific system for a specific task and its legal, I am all for it no matter how silly I may assume it is it can be very important to the buyer.
I go into every deal with a 'open mind' and as a security professional we are here to help.