As far as I am aware, none has ever appeared for sale, nor has anyone ever seen one other than its original showing in 1993 (exception: the empty case pictured on the BBoAH). The number manufactured is probably in the single digits, possibly just the one. The engineer who designed it may have it in a box somewhere, or it may have gone down with the ship when Commodore imploded.
Assuming it survived, it will be buggy and barely functional - it was a prototype, after all.
If one ever appears for sale, expect to pay a minimum of something in the mid 4-digits.
WOW, nearly all of a hand..what is this Saudi Arabia?