The main thing that might limit its use would be the bridge design... whether or not the Bass Max portion of the pickup will fit into the bridge wings without serious modification. The Double Big Twin elements will most likely fit onto the bridge somewhere (they attach with a double-sided adhesive).... as Francois said, pics of the bridge in particular would help. How it would all sound is anyone's guess. Ideally, you could get your hands on the pickup and the bass, and try before you buy.
I have an Azola EUB with a single-element Bass Max (along with a bridge piezo pickup), and it sounds fantastic. I've also owned a plywood double bass with the Bass Master Pro mounted, and found it to be a very versatile, good sounding system.
PS.... interesting that an EUB would have no pickup.
