OK, informational post aside: my thoughts -
There is no discussion of what becomes of the existing park & ride network, which has no relationship to the rail line. Those park and rides have hundreds and hundreds of parking spaces on pretty valuable land.
30 minute headways suck BUT that could be a reasonable trade-off if the train is predictably on schedule.
Really none of the "original" station locations have capacity or potential for much on-site parking, which I think is a huge unaddressed elephant in the room. There 1/2 mile distance has a pretty decent population concentration, but they will loose any ridership on the west side of 77 that the metrorapid buses currently carry.