How big is it? Have you made the final h265/h264 output? If you haven’t yet, you could Reselio me the ProRes file — I have a computer pretty much dedicated to running Handbrake all the time (would do h265, tuned for grain, slow speed).
If you’ve got the output file already, I’ve got some space on Google Drive, but I can’t leave it there forever. A lot of people just get the cheapest WeTransfer accounts and support the link for a month or two.
The ProRes files weren’t available so I had to work off a h265. The output file is 90gb, I’ll send you a DM!!