I have a late 2003 AS-R SL with a failing Progressive 5th Element shock. I am currently looking into the RockShox Monarch as a replacement since I can get a good price on it. However, I'm not sure if these work well with this bike or if the necessary hardware to mount it is available. Yeti offers a Fox mounting kit, for example. (I am waiting to hear back from Yeti if they know.) Does anyone have any personal experience with this shock on this bike?