Thanks for all the replies!
It's actually a good advice, not to run backup and tor on the same server, in case it gets seized or the ISP kills it. Also, the small monetary savings aren't really worth the increased attack surface for both, the tor relay and the other services.
I therefore won't be running a relay on that VPS, but I will check if my funds will allow me (student, so money is always a bit tight) to spin up a second VPS just for tor.
Thanks again for all your advice and help!
--- Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. https://www.avast.com/antivirus