I happened to run back across this thread and thought I'd add another comment. I don't know if you were successful in your "quest for Olympus" yet or not, but I was thinking that another camera worth your consideration would be an Olympus Trip 35.
The Trip 35 has a scale-focus 40mm f/2.8 D.Zuiko lens (four elements in three groups, if I remember correctly), very sharp, very contrasty. It's not an easily pocketable camera nor is it great in extremely low-light conditions without a flash, which are possibly its only drawbacks. Note that it is possible, as long as you can make 1/40 speed work with the apertures available (f/2.8 - f/22); just take the camera off "auto" and select the aperture, the shutter interlock is disabled in manual mode. Because of the camera's design there aren't even any light seals to need replacing although you can put felt along the hinge if it makes you feel better. No batteries are required either. You only have two shutter speeds (1/40 and 1/200) available but even with that, I've never had the camera make a bad exposure; a couple of bad pictures maybe but I can't blame the camera for those 🙂. The scale focusing wasn't nearly as limiting as I feared it would be. In fact, once I got used to it, I started wondering why manufacturers got away from this design and went to fixed-focus instead. Very friendly, all you have to do is be able to guess the distance reasonably well up to about fifteen feet or so, after that, the setting becomes obvious 🙂. If you want to check it out, Matt Denton has a blurb on his Trip 35 on the website I posted a link to above.
I got mine in near-mint condition (read: a couple of almost invisible scratches on the base, everything else flawless) on eBay for $24.99 plus shipping, call it $30 altogether. From what I've seen, that's fairly typical. They're easy to find in usable condition because Olympus made a million of them and there is really very little to go wrong with the camera. If I sound very hyped about this camera, it's because I am. I've used it successfully as a street shooter and casual fun camera. Realistically, it could have taken almost all the photos I shot on my Florida vacation and certainly wouldn't tempt any thieves. Put a lens hood on it and it almost looks professional 🙂
OK, I'll shut up now.