Charles Ives Society RA excerpts

I just noticed that the Charles Ives Society appears to be in the
process of adding a bunch of _very tantalizing RA files -- check out
the great "Four Ragtime Dances" excerpts! -- at their site (including
many obscure and hard to find pieces and posthumous realizations by
others):

<http://www.charlesives.org/iw_index.htm>

And it appears as if they're going to include some "Universe Symphony"
excerpts as well, one being the Larry Austin realization and the other
the Johnny Reinhard realization (though it doesn't look like they're
going to include an excerpt from the David Porter/Ives Society
edition - maybe this hasn't yet been recorded?). Anybody know any more
about any of this?

Dan