A place to stay near the Jakarta Selatan Cancer Centre while Muhammad receives treatment

My father Muhammad has been accepted for treatment at the Jakarta Selatan Cancer Centre in Jakarta Selatan, starting on Sunday in November. We live 342 km away in a village four hours away, and hotel costs would use up what we have set aside for the treatment itself. We're looking for a room, granny flat or short-term rental within about 30 minutes of the hospital, for 5 weeks. Two of us would stay: Muhammad and me. We can contribute $25 a week and cook for the household if you'd like. Muhammad will have some immune precautions, so a clean, smoke-free place would be ideal. A kitchen is a bonus. Thank you. I never thought I'd be the one asking, and I'm grateful for every bit of support.