All of you that still need to purchase the Mitutoyo calipers for your new AMP,
The link for the calipers from John's blog no longer works and the $98 price no longer available, but the vendor Enco will match and beat by 5% any other price and might also provide free shipping.
Email their customer support a link to the best price you found the calipers for and they will verify and email you a better quote.
Got a great service from them and will buy again if I need something they stock.
The calipers;
http://www.use-enco.com/CGI/INSRIT?PART ... A=610-0045 