As everything has taken three times as long as expected, I am hesitant to talk about time frames. But, given how close we are on the 100 series system and the fact that modifying it for the 80 shouldn't be that much work, I think they will be ready way before the fall. As far as weight, that sounds to be in the ballpark.
Need an 80 to fit the system in? I am in the south bay and don't daily drive my 80.