I feel your frustration about the lack of information of your yacht.
Record keeping was not a strong point of some boat builders in the past.
I have the same void about my yacht - an Adams 28 - and owners of the same were not very helpful either. Years ago I was promised fotos and info from NZ and OZ but it came to nothing. Some owners just do not care about helping others.

My mate's Cav 32 was built in the mid seventies using dark mahogany veneers while my Adams built in 89 featuring similar timber to yours (fotos) much lighter color, according to the changing tastes in interior finishing. Mine is called 'white teak' on the production sheet l have.
On that basis l would dare to guess, yours was built in the late eighties.