[ithacaartist]

Here's a suggestion, based on my understanding that you simply need help in visualizing certain aspects of the pistol. Information and knowledge are bought and sold all the time, so what you seek can be purchased. Go to a local to you legal seller who has an example, and strike a deal. With such an approach, you need only convince a couple of people to cooperate with you, and you may be able to compensate them in some other way than cash up front.

If you're trying to understand more about the engineering aspects of the gun, I'll again plug G. Henrotin's e-book, suggested in a post above. Not to have acquired access to this publication by now would appear to conflict with your stated purpose. Even if it serves only to educate you to refer to parts in a coherent way, the $7.99 is more than a fair price. I've witnessed some very good suggestions for you in this thread, and we're all waiting to see what you will come up with next.