I think you've done a remarkable job detailing the correct way to dis- and re-assemble the Mk II. Thank you!
To help those of us who are guilty of not always reading the friggin' manual (myself included), it may be helpful to add a "this is why its not going back together right" section (perhaps just after the quick summary section). This could something as simple as text links that reference bookmarks in the detailed instructions, or as elaborate as a separate troubleshooting page.
I'm pretty sure Radar will join me in the recommendation that getting the hammer strut in the mainspring assy. pocket gets top billing in reassembly troubleshooting.