by Pema Rigdzin » Thu Jul 12, 2012 9:50 am
Well Vimala has the complete works of Dudjom Lingpa and Jigdral Yeshe Dorje, so you could contact them and ask for just that ngondro text. I also know they have a mixed English and Tibetan sadhana of the medium length Chariot of the Path of Union displayed on their site, so they may also have the long version arranged in this way.