On the more recent ride cymbal: The 1st pic you refer to as Guitar Center sourced looks like a perfectly respectable Avedis cymbal from the 1960s. But is that the same one as the blurry pic of your ride cymbal on a hat stand? The second hat stand ride could also be, but the pic is so poor in quality it is hard to tell. Certainly the two pics of the stamp both look like a perfectly respectable examples of what Bill Hartrick (Drumaholic) called the early 1960s stamp (or later 60s if it is 1.5" tall rather than 1 3/16"). But are those two stamp pics the same cymbal or two different ones? I'm confused by the way your text and use of pics has been done. But then I'm a bear of little brain.
On the possible Dream (or other Chinese sourced) hats: There are three distinct periods of Dream Bliss cymbals from when they started out. And now Dream have re-introduced some rides (only rides last I looked) which are intended to be like the earliest ones and these are called Vintage Bliss.
The reason I didn't think your hats were specifically Dream Bliss is that the lathing isn't the usual microlathing they have:
http://www.dreamcymbals.com/instruments/cymbals/bliss
If it resembles anything Dream it looks like the current Dream Contact lathing:
http://www.dreamcymbals.com/instruments/cymbals/contact
But Contact cymbals have also changed a lot in lathing pattern over time. My pair of hats is Bliss type I over a Bliss type II, and my contact is a Contact type I which has pin lathing on the top which is like what is seen on a K Zildjian Intermediate stamp. So your pair of hats aren't a match for the lathing on any of mine. What I was going on was more the way the hammering and the bell/bow transition look.
Unfortunately the web site which once had the different type definitions for the Dream Contacts and Bliss is gone, so the photos and descriptions are gone. I can remember some of the details and I've got examples so I should be documenting mine. Mine were bought new towards the end of 2006 so that is a time when the Type I Bliss were still in stock and the Type II Bliss (with the corrective over hammering) had appeared. So at least I can mark that point in time.