The only bass I'd trade that Hyak away for would have to be an Alembic, Abe Rivera or..maybe a Modulus Quantam(neck thru).  Regardless of blue book value..you'd be trading down otherwise.

Actually, I recommend getting over your bass fever that we all get..and not parting with such a gem.

Thanks for the kind advice T-Sustain. I appreciate it. I wholly agree with your view regarding trading  it away...I've had it recently appraised by a well known auction house in Boston area, and auctioning it may be the route to go in the event I do decide to move it. Thanks again.

Your are welcome.  
 
Thanks for the pics.  That's one of the nicest basses I've seen on the net.