Holy crap. I came to this thread to pwn your list with my fairly big list.
Nevermind.
*slowly walks away*
But really, well done. You've thoroughly researched this.
I made a pretty big list of guitar parts sites, and compared them all for prices on certain items like truss rods, strap loks, fretwire, etc. I figure if I order bulk amounts of each item from the cheapest site, I could save alot.