The rear shock is the last thing for me too change as I've gotten my stocker setup pretty well. Can't tell you anything about the yfz shocks somebody else can chime in on those. And since I haven't posted it for awhile...
You weren't here when there was a section named ask a builder or something like that were you? Nothing wrong with qualified feedback or offering to do the work but I have seen some who were slightly more tactful about it. Nothing wrong with drumming up business but if he gets a customer who isn't satisfied it'll be all over the boards.
Side note, this doesn't have to all be done at once but you need to have a plan so you don't buy stuff to later sell it at a loss. Like new front shocks and then deciding to run +2 arms...
Same answer applies...find the hole and hit it WOT
I have no problem with anybody posting about stuff that interests somebody even if it's not Banshee related but these posts lately with the soul goal of pissing people off have accomplished their task.