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Just a clarification.
Not all fetish videos are pornography, as that term is usually defined. Google "video" "smoking fetish", for an example. Many of those seem to involve fully dressed smokers.
I mention this because the LW says the video would involve no nudity on her part.
That being said, I think Cary and the previous poster are right. LW, you really probably don't want to have people recognizing you in future years from "that video". And it could possibly hurt your career in academia. You don't want to miss out on plum teaching assignments because the administration thinks you might be a controversial choice.
Talk to the university of your choice about funding options. There's a lot of funding out there. Good luck with the PhD.