MM style + P bass style PUPS

Hi Everyone,

I am building my first bass. At first I was planning on building a P bass w/ A jazz neck and some lindy fralins, but I saw a pbass body w/ a MM bridge pup routed that gave me serious GAS and now my build could go differently than I originally planned. I've got a couple questions about different things:

1. If I put a Fralin pbass in as the neck PUP, I would have to get a different brand MM style. Would this have any effect? Would it be better for me to match brands?

2. What are some good brands of MM style pups?