I have for sale a set of P/J pickups recently removed for a custom build I bought on here last year.
To the best of my knowledge, and as I was informed when I bought he bass, they are a Di Marzio Model J neck pickup, and a Di Marzio-style Precision pickup taken from an old Westone bass. I'm not sure of the vintage of either of these, but they sound great, and are well matched for tone & volume IMO - although that is obviously subjective.
Looking for £35 posted for the Model J and £25 posted for the Westone Precision ... or £55 posted for the pair.
Cheers!