The infection is relatively common and ab treatment failure is rare. In Finland we have free health care, so I'm looking at things from the resources pov.

Antibiotics: give the patient a pill, four times per day for a few days, no infrastructure needed. The patient might even get to stay home. It's very rare this doesn't work.

Transplant: Admit the patient to a hospital and have them take someone elses place. Isolate the patient from other patients. Make staff wear protective clothing when dealing with the patient. Find the right kind of poop donor (I'm not sure if poop can be stored). Have someone prepare the transplant. Have an already busy gastroenterologist explain the treatment to the patient and insert the tube.