About time I made my first post, I think!
Are you after a vintage sound, to go with the vintage look? If so, you might want to consider a different set of pickups than the Quarter Pounders. They're great pickups and have a nice hot output, but not a particularly vintage tone. If it is an older tone you want, their Vintage SJB-1 pickups would probably be more up your street than the SJB-3 set.
Another recommendation (and cheaper than the Seymour Duncans) would be for a set of Wizard Sixty-Fours. I used them on a Jazz Bass build a couple of years ago - I actually replaced the Quarter Pounders with them, opting for a more traditional Jazz Bass sound and they sounded really nice. They're £70 a set and the service from Wizard is top-notch, too. They also do higher-output pickups.
[url="http://www.wizardpickups.co.uk/shop.asp?category=Bass&sub=Jazz%20Bass"]http://www.wizardpickups.co.uk/shop.asp?ca...sub=Jazz%20Bass[/url]
I've used a Gotoh 201 on a P-bass, when it wasn't possible to get hold of Badass II bridges and found it to be an excellent, sturdy bridge - a P-bass bridge cover fit neatly over it, so I imagine that the Jazz cover plate would too as it's longer. You might find with the Jazz cover, that you need to move it slightly back to clear the back of the Gotoh as the back end of the cover tapers more than the P-bass cover, but you can position it before screwing it in.
I've no experience with block inlay stickers sadly, but I think there are a few threads on Talkbass about them. They certainly do look nice and are quite cheap to buy.
