I have a 1979 Kramer DMZ5000 aluminum neck that I absolutely love - it is a funk machine! Excellent condition w/ OHSC and a huge variety of tones. My only issue is ergonomics. I have cubital tunnel and, despite best intentions, cannot do squared edges. I would ideally like to trade (plus money from me) for a 650b. Alternatively, I would trade for a DMZ4000/4001 (non pick guard) or a 350b. Also interested in Vaccaro basses or the Hartke aluminum necks. Not for sale - trade only. Please send photos and your phone number so that we can discuss specifics. Thanks.