alcohol to propane converion?
It can, but it will be a lot of work to get it right. (Propane locker, self draining, solid line to stove, without splice, propane sniffer in bilge, and bilge blower, solenoid to tank with switch at stove.)
Why not just switch to a non-pressurized alcohol, and save your labour days for sailing. Check previous threads on the pros/cons or the Origos.