Outboard lifting is killing me!
I don''t know the Oday, but I have a Pearson 365 Ketch and have created a snap on Block and Tackle system for the Mizzen boom (and there was a bracket with hole already there, so maybe previos ower had designed same thing). My suggestion of concept might be to use your boom if possible, if not maybe a halyard and create a guide off you stern stanchions. It helps to have the block and tackle system work at least 15 inches from your hull so things don''t get banged up. There are more expensive options, but hope this might trigger something to try.