https://www.shipsnetwork.com/an/boat/boatdata.?...Beneteau... has a lot of information, brochures, lay out, specifications and manuals; just click on Beneteau next to Bavaria. Sailboatdata.com is also a source of information,
that goes also for beneteauclub.nl, the last one requires log-in (supposedly members only) to obtain info.
Alas Beneteau started rather late on regular distributed manuals. One of the earlier manuals is dated 1984 (First 38) and only in the French language. In the late eighties and early nineties Beneteau supplied manuals on regular basis because of the EU-rules that obliges builders of yachts to confirm on CE-standards.
Try eventually Beneteau France or Beneteau USA.