Electra/Westone Fretless Bass Neck

I have a 1984 Electra/Westone bass. It's model no. is 4050129 if that's relevant. Love this thing to death! I'd kill for fretless tone and I know these necks exist somewhere. Anyone know what direction to point?

I assume you've got a Phoenix, then?? The Westone equivalent was the Spectrum and, as far as I know, the fretless neck was offered only on the LX model; the X695, and Electra offered the same instrument in 1984 as the Phoenix.
Westone offered the Thunder II and III in fretless as well....

@corsair
You are correct about it being a Phoenix, and I am aware of all of the above. I am looking for a neck from probably what would be the LX model that is simply unwanted.