Aft Cabin Filler Panel for Catalina 36 MKI

[btasquared]

Recently purchased a 1984 Catalina 36 Mk I and love it. One noticeable drawback, relative to the MK 2, is that it lacks the filler panel that turns the aft berth into a double.

I've looked and looked for a source from which to buy one, or a place to buy a pattern to make one, but have struck out. I could build one myself but if I could find one already finished I would prefer that (I have plenty of other projects to tackle).

Any guidance from the community would be appreciated.