Great digest. Mine came on a 800 foot reel. The previous owner had also re-edited it to try to put everything in order. I say "try" since I spotted a misplaced scene. You wouldn't know it unless you've recently seen the movie, though. So I haven't fixed it yet.
I need to check to see how full the reel is. I have a few other Derann 2-parters still on the original reels, but their hubs looks awfully big. I believe each part is closer to 300 feet, so I wouldn't be suprised if that was the case for THE MALTESE FALCON.