I know it's not a 2-layer, but the stay-glow Super Tinker i have is awesome. I'm not even sure you can get one stock, but you could get a Stay Glow Climber instead.After a quick look, I'm not seeing any 84mm stayglows. They probably exist, I just don't know if they're readily available.The cadet is an awesome knife too, if you don't need scissors, and want a SUPER easy to carry tool.
If you're thinking of wooden scales - the new Spartan Wood is a really gorgeous looking SAK.Personally, I think the Stayglow scales, with their connotations of radioactive glow, are the last thing I would buy an ex-cancer patient!