Here's a good deal on a 25' Series cable on reverb.
Bill, tgo
https://reverb.com/item/37796302-5-pin-cable-for-alembic-series-1-or-2-i-ii-bass-guitar-neutrik-mogami (https://reverb.com/item/37796302-5-pin-cable-for-alembic-series-1-or-2-i-ii-bass-guitar-neutrik-mogami)