Used Cypres calculator in Gear and Rigging July 18, 2016 For an actually accurate value calculation, including valuation of maintenance and a spiffy graph, see https://www.wiltink.net/users/johan/aadvalcalc/. Works for any AAD (though possibly not all webbrowsers :P). (This post not intended as an answer to your specific question.)Johan. I am. I think.