I went to my dentist today, and it was not good news. I need a very, very expensive root canal. He did give my an alternative option, which is to have it removed completely. The tooth is way in the back, so a gap wouldn't be visible if I had the said tooth was removed. I'm not a vain person, and it wouldn't be visible, but I still have some reservations about having it removed.
Price for having a root canal: 4600 kr/ 817,34 USD/ 523,55 GBP.
My next appointment is in about month, so I have some time to give it some thought.