... sorry if this is raining on your celebration....

Not sure what happened at your LBS but I would like to put in a word that maybe you should go elsewhere for a fit. I'd hate to have you put unnecessary pressure on your knees or hands because of an incorrect fit.

Also seems like you may need a different stem length if you want to push the seat farther back. I dunno.. something doesn't quite sound right but then maybe I'm ready your description incorrectly...