Wow, the color looks amazing. Again, it has that warm 70s feeling mverta mentioned. I get this feeling almost like I'm seeing it in a theater in '77.
He's also selling an anamorphic lens bracket for an extra $100. It says it's for an Elmo GS1200 or ST1200.
http://www.ebay.com/itm/Elmo-Super-8-Anamorphic-Bracket-Kowa-Projector-Cinemascope-/180824588490?pt=US_Movie_Slide_Projectors&hash=item2a19fc40ca
Silverwook, if yours is a "__-1200" model then it can take 1200' reels. I know someone modified an ST-800 so it could run them, but I know nothing about film projection so I don't know how difficult it would be.
Now that I think of it, the 1200' length is actually a blessing in disguise. Since it's on two 1200' reels instead of four 600' reels, I'm assuming that theatrical reels 1-3 are on reel 1, and reels 4-6 are on reel 2. If you're not concerned with devaluing the print, you could cut the film at the original reel changes and make six 400' reels.