Good idea to get ahead of the drag curve. I wonder if you've tried flash cards for swotting speeds? Anyway, perhaps you can download some PDF information from this web site.
Free Beechcraft BE-76 Duchess Checklists to Download
I must say though that I would have thought that your training establishment had a legal as well as a moral responsibility to furnish you, upon request, with a copy of the specific information relevant to the aircraft you're going to fly but perhaps you are trying to stay ahead of their game as well?