The Osborn is sometimes, and MPC diagrams are usually limited to the "basic part number". Once you pick a basic part number from a diagram, such as the 045B72, you then look that up in the text area of the diagram. When the Osborn manual lists the complete part number, sometimes it does not call out all of the individual components like the MPC. The Osborn manuals however will show how the assemblies are installed, the MPC is not purposed for that.
In the text portion you will see that the 045B72 is described as "panel - console finish - rear - includes attaching parts". This particular part has 5 variations, 3 for the 67 year.
You can do this for each part.
Jim mentioned the price is right free 65-72 MPC, but I like to point out that the 60-68 MPC is available for purchase and the quality is a step change better, as is the ability to search and find text.
Fasteners are a bit different. Using the diagram as an example, pick screw 55927-S2. To look this up you need a Ford standard and utility parts catalog (aka the fastener manual), or perhaps the cheaper route would be to look at the AMK web site. The Ford fastener manuals are available at NPD and probably others.
In this particular case, the 55927 was not in the 1969 version of the fastener manual. I did a browser based search and found them for $0.20 at FordPartsGiant.com. Never heard of them, but a clever name. You can also look at amkproducts.com or look at your favorite Mustang parts supplier.
I looked up 352000-S. That I did find in the fastener manual. Win some, lose some.
There are a lot of options out there. We talked about a few versions of the MPC, the standard and utility parts catalogs, the AMK web site (and available book), and general internet searches. There is no single place to get all of the answers.