We found a very easy way of modifying the handbrake, if you shorten the stock R31 handbrake Bracket and bolt by 50% and use right Caliper on right side, left on left, the Handbrake hooks up in almost a stock Position.
The bracket is a bit thick and also the hole is a bit small. A little grinding and you're ready to rock.
Dimitri's also has another way of hooking it up which we should get a photo of.
I just got a 1 Inch Master today so i'll fit that and we'll do a write up.