I've no experience with Wolfetone, outside of a few mails with Wolfe, who is a super nice guy.
MCP Black Belt? The AlNiCo II Black Belt's wound by Wade Westbrook are simply my favourite P.A.F. clones and the only model that I would favor compared to the few vintage Gibson pickups that I had the happiness to play.
Now, the "right" pickups are a moving target for most guitars because each instrument has also its personality, so I wouldn't rely only or a brand name or on testimonials. Nothing is worth direct experience IMHO.
BTW, among Duncan's, I love SH55/Seth Lover's and vintage 59/SH1's (those made in the early 80's). Seymour's tonal signature at its best IMHO when it comes to P.A.F.ish variations. YMMV.
Good luck in your quest.
EDIT - My statements above were about an experience with Gibson's or guitars with the same scale. I'm not sure I would put a MCP BB in a "Fender scaled" instrument. Or I'd order it slightly overwound. Once again, YMMV.
EDIT bis - This answer was initially posted while I hadn't seen the post above. When it comes to Motorhead, I'm stuck to the Fast Eddie Clarke era (who made me deaf to celebrate my first real R&R concert: I show my age here) but isn't Phil Campbell meant to play SH4/TB4 pickups?...