I just googled using:
"remove fridge on catalina 309" and it popped up my original post about the fridge on sailnet.com. You'll find a posting there by someone who talks about how he had to saw a bit of trim away at the lower left of the fridge, and remove the drawer assembly underneath. No details, otherwise.
Catalina ought to have a little shame over the both the fridge and the way it is installed. They've had a lot of problems with the Waeco, leading to a lot of people having to figure out how to remove the stupid thing.
By the way, why are you removing yours?