Hi.
We have been the proud owners of a Bavaria 38 'Lagoon' (1991). (It's basically the same boat as yours,) for about 14 years, and as Symphony pointed out they were aimed at the upper end of the market to compete with the likes of Moody etc, They failed miserably to compete financially and went bust, but they left us with some excellent yachts, although I wouldn't think there would be any manuals around anymore.
They are built to last, the only weak point being the so called 'teak' deck that is really just a thin veneer bonded (or not..!!) onto cheap ply. We had it all removed when we bought the boat.
A good indicator of the build quality is the displacement,
A quote from the Yachtnet website states that the Bav 42 Lagoon (same boat as yours but longer):-
..."An indication of the difference between these 'old' Bavarias and the current versions is that this 42 actually displaces substantially more than the current Bavaria 49".....!!
As for the length, our 'Lagoon' is 11.5 m, so yes it's 38 ft, I don't know when Bavaria started this nonsense of calling a 38 ft boat a '37'.
In my humble and extremely biased opinion you have made an excellent purchase.
........Have fun.........Bill