Brake upgrade....You'll need hub adaptors (about $200 for the pair), the flexible brake lines you can go 1 of 2 ways....One, buy braided ones, if you wish, or you can buy adaptors, that go inbetween the flexible brake line and the hard line.....And 3rdly, a 1" bore M/C.
I did the conversion about 3 months ago, on a VC......I just used the adaptors, for the flexible brake line to hard line, and at the moment, I'm still running the 15/16" M/C.....I do have to change the booster in the VC, because it's from a VK, so it's smaller than the VC one, so when I change the booster I'll do the 1" M/C I have here at the same time.
The diff I have is a 10 bolt disc braker, running 3.08 gears....I also have a 2.78 disc braker here as well....You have to be cautious, with the 10 bolt disc brake diffs....Some have the large unis, some have the small ones. The 3.08 geared one has the larger unis, whilst the 2.78 geared one has the smaller ones.
Over all, I've been pretty happy with the brake upgrade I have done....Once I change the M/C then it should improve it more