The Old Man Emu springs do not seem to come with bushings for some reason. I was getting my information from this website. I don't think that you can buy direct from ARB, but given that you are in the Northwest you should not have too hard of a time finding their products.

As for shocks, if you were happy with the ride of the RS5000s in the past than I would say that is more important than whatever opinion I give. I do not believe that the shock valving has changed. My shocks were $50 each for the MV12s and $35 each for the Prerunners. Not really that big of a price difference from the RSX if you want to run those. A lot of guys on the board have even been running Monroe gas charged shocks with good results, and those are very reasonably priced.