Paexplorer,
Now you are describing the Series I as a 32 scale. That's a big deal. There is a bigger than you'd think market for medium scale exotic basses. At least, if you believe a lot of the convo over on talkbass.
You do not mention in your ad whether or not you have power supply and cable. Since you point out that the zebra wood bass does not, I assume that to mean that you do. If so, my advice to you would be to state that in your ad and include it in the pictures.
Alembic buyers often step away from instruments that do not have cable and box. Some who have other Series instruments are often willing to take a chance on instruments without cable & box if they already have those things with their other instruments.
My 2 cents. Good luck with the sale.
Peace,
James