There is an active owners group for Catalinas including the 22 here CLICKY
From memory I don't think the woodwork in mine was structural EXCEPT THE MAST SUPPORT! If you have a wooden one then have a really good prod at the base to see it there is rot.
I had the UK version of the 22 and was very happy with it. Cruised it quite extensively for 2 years and it looked after me very well.