Fixing an old motorbike

I have an old Ducati from 1971. I got it over 20 years ago after it had burnt badly in a garage fire. That time I  got the frame and fuel tank repainted, re-did the electronics, the seat and got it back into working order. The last time I tried to start it, the kickstarter shaft broke. That is also already years ago. Replacing the kickstarter shaft requires the engine to be taken apart, I think. It's a big job which I haven't wanted to tackle. I took the seat and the fuel tank off already last year. Now is the time finish it off. So the engine needs to come off.