Personally I'd run like heck from this guy in fear of him slapping a surcharge on his asking price for the privilege of dealing with him.
Interesting Ads
This guy seems to have some very interesting stories - traveled with the Dead, goes all over the world... Impressive.
http://app.audiogon.com/listings/mark-levinson-no-326s-preamp-new-in-sealed-box--2
http://app.audiogon.com/listings/mark-levinson-no-326s-preamp-new-in-sealed-box--2