[_trampeltier]

Good IR tele lenses are not just expensive, the don't even have prices, they have "phone numbers". So you would have to get money from really a lot of people just to pay they IR camera and the lenses.

[Uberphallus]

https://www.amazon.com/Fluke-FLK-LENS-4XTELE2-4X-Telephoto-T...

Basically double that of high end SLR lenses.