here is an inexpensive timer mod. just follow the instructions here: http://auberins.com/images/Manual/Mazzer1.pdf
i bought a slightly different auber timer on ebay for $38, same result.
auber has a dedicated coffee equipment page here:http://www.auberins.com/index.php?main_page=index&cPath=6
there is enough space in the left rear corner of the grinder, 1 millimeter below the capacitor.
below the main switch in the front right corner i installed 2 momentary switches ($4 each at radio shack). one switch is hooked up to the timer to start it, another switch hooked up to the relay/contactor for pulsing.
i marked the cutout for the timer, drilled holes at all 4 corners and made the actual cutting with a jigsaw rigged with a metal cutting blade, then cleaning up with a file.
altogether it took less then 3hours, research on that topic took much longer!