The Alpa line was until the last model totally quirkie as far as SLRs go. It, like the Exacta, went its own way in controls and use. All that said, it totally rose above the other makers is feel, engineering, construction and snobbery. it is the only camera I ever came across that makes a Leica and Rolleifleex feel like a mass produced piece. The Alpa lenses at the time were considered the best of the best but as the cost was so much for the camera and lens the company was off the radar even for reviewers. This was more than a camera for the Rolls Royce crowd as it also was THE serious camera for professions who had huge bankrolls.
A dealer in my town loaned me a 9 with the Alpa 50 m lens (can not remember which one) for a weekend to try. It took an entire day to understand it and feel comfortable to use and the next I had an experience I do not think I've ever come close to duplicating. No way could I afford it but I learned the difference between my Spotmatic and what I lusted for thereafter.
My advice is different from the others. You have a once in a lifetime camera. Keep it and when you can afford to do it, have the camera and lens serviced. The fungus problem may not be as bad as suggested; a competent lens repair person should look at it and advise. If you simply dump it, even at a profit you may find yourself regretting it for many years wondering if i was the right thing to do.