What a coincidence- I was looking at those not 10 minutes ago. The 'titanium' set are just ordinary ultra-maxxed style gears, and so to are the other set- RC4wd idlers dont have holes drilled into them to save wait. Making up that story about having them custom made by an areo space firm is rather interesting, a total lie, but rather interesting..... Some people will do anything to get a sale; I think I'll report him too for good measure.
Edit: Take a look at this-
http://s141.photobucket.com/albums/r78/enerpack/?
How handy, he uses the same pics for all his listings. I believe the gears are real- more to the point, the photo is, but the stuff he's actually selling and sends to you is that shiney looking alluminum crap.