I did what you plan to do from Tarty, but for the front end
SD7 vee
FR5 lever (I wish I got the SD7 lever though)
Cable from tarty
These pads
It works great! I got the hard compound as I run a light grind, I could go with a harsher grind but there really is no need as it works amazing as it is.
Lovely bite, sounds and lock.
My only issue was that I didn't lube the inner cable before fitting thus causing shit loads of friction on the inside but Ogre fixed that with his special lube.. and now it's well smooth!