I just posted in the general section of the forum about DIY , I find doing the work myself is very satisfying [admits here some things I cannot do ] but I will have a go . Done discs and rotors several times in the last 15 years with our various vans and its a doddle . The only thing you mainly need is a a long extension bar to crack the original bolts , then make your own custom socket to wind back the adjustable pistons .