All these situations define we’d a serious Orthodox Rabbi who is also experienced in Health situations and situations between life and death.
Cause halachically even if a health situation will cost millions of dollars to heal with serious operations and surgeries etc …. A person is still never allowed to choose death versus life although every person is given the gift of free will and to make their freedom of choice but not to choose death versus life when it’s based on the reason of financial money cost millions to get healed
Versus if a person’s health situation is extremely painful-no money issues involved-to stay alive and nothing is helping the pain he is currently in the there are situations that halachically permit a person to end his or her life.
Approach your local Orthodox Rabbi who is also experienced in Health situations for serious issues like this
Hatzlacha rabba and refuah shleima to anyone worldwide who needs it