My 6 speed swap was pretty much the same as you are planning. I had the spec V hubs redrilled for 4x100 and went with the brembo brakes and all. Originally I had a custom driver's side mount (I think Daxx made it for me) and used the original B14 rear mount bracket and a p12 axle carrier that had a spacer on it to fit the B15 CVs. Early this year a friend got be the maxworx' carrier bracket because she "didn't like that the CV had a spacer on it", but honestly it worked fine.
My 2 cents on the mounts/brackets: get a rear mount that connects to as many points as possible. With the B14 one only that one bolt mounts up and I've broken it twice now in hard launches. I have a DET block so the carrier bracket was made different I think by mazworx'. I noticed after their brackets install I had to shave some of the frame where the CV was now slightly touching. Just an FYI.
Fly and clutch wise I went with an S15 JWT fly and a 350z clutch kit. For the past year it’s been doin' me good. I never tapped the bell however for the OBD sensor, so I can’t comment there.
Also, when I swapped out the bell, for anyone that’s doing it themselves, it only looks and seems daunting. If you take it slow and easy and by the book you will be fine. I got an '04 spec V box and swapped out the final for a '02 Maxima final (3.8) and it’s been doing me good so far. As I said in an other post/tread: it’s pretty much the like a non-LSD B14 box with a sweet 6th gear... and a VLSD (edit: opps, i ment HLSD. sorry) now.
Good luck with the swap!