HiSpec rear caliper with handbrake (Ultralite 2 Sierra)

[CheshireCat]

Has anyone fitted these recently (i believe they are now an updated version) and can provide feedback on 

a) fitting, eg. Are additional brackets needed,

b) performance of rear brakes post fitting

c) fitting of new handbrake cables 

d) performance of handbrake

e) what pads chosen and why 

e) any other comments

thanks