Well, as others have said, if you want a reverse, you're looking at an NYC as your only option from your list. I also agree it's a lot more traditional for a vintage tone to use alder/braz, and really, no top.I am torn between these for the future reverse PJ 5er:
Quilt Maple on Ash/Braz neck,
Quilt Maple on Alder/Braz neck
Alder/Braz neck
This bass will be specific to the blues stuff.
Steer me in the right direction guys and gals....
However, you're breaking from tradition in a couple important ways... a PJ is more than a P, and not the same as a J... it's blended tone is a lot more modern sounding than anything you'd typically hear on those older recordings. Also, if you go reverse P, then it won't even truly sound like a P, either. Not a night/day diff, but it is noticeable.
So it seems like you're not necessarily that concerned with being a purist tonally, but rather, just finding something that sounds good to you, so I would suggest you keep yer options open.
Here's what happened to me...
I had a beautiful NYC alder/braz PJ5 (tho not reverse) that I specifically got for more traditional/classic stuff, and figured it'd be my main bass in the blues band. It was a fantastic bass, but just didn't "have it" for me. So I sold it and evaluated a straight up ash/maple NYC PJ5. Bam. My sound was there. I decided I wanted a different finish, however, so I was about to place an order when my Metro popped up, and it happened to be in my weight class. The rest of course is history.
So since you've got time while you save your money, I suggest you go back to NAMM in January and try some things out and see what speaks to you most. Maybe see about bringing a Cafe Walter and an MP3 player with some classic tunes to play along with.
Steer me in the right direction guys and gals....