I'm doing the rear first as i need to raise the bike up from it's lowered position but after that i'll be looking at the front end and came across this video which is really useful for a DIY install of some YSS PD valves, if you have a few tools to hand and a garage it looks straight pretty forward.
https://www.youtube.com/watch?v=DgFudsaUFOk
https://www.youtube.com/watch?v=DgFudsaUFOk