@Reid,
I would suggest keep a regular, yet often search on the Facebook page of Rivendell_Bicycles BUY/SELL and TRADE. There is a lot of Rivendell bicycles and componentry traffic going on there daily. I visit it often. You will never know what will appear.
I am sorry to hear of your regrets of selling your Mr. Gus Boots Willsen bicycle. Truly one of a kind and too bad that it out of production, Rivendell's mtn. bike.
Kim Hetzel not letting go of my Clem.