Buy what you can afford without getting into debt. Try out RF system first, especially the manual focus and handling.
I started with M8 and venture upwards. But I have moved to film as I enjoy the analog feel and having to develop my own film.
Shooting M6TTL n R2A n 120s most of the time...
10 years ago I took my EOS 300 with 20 rolls of film and went backpacking alone for 2 months in Europe. Came back with jaw dropping, awesome photos which I didn't expect until I develop them when I came back. It was the magical moment of looking at the outcome of film that stuck with me. After...