Should of had wifey put everything in the dishwasher, lol.. I definitely do not have the patience you have to do what you did here. Many of them pieces are stressed into their positions, like the vent directionals. Good luck getting all the right screws back into their right spots and hopefully you'll have no extra parts.
You ever have problems with any cracking between a repair on the dash and the dash itself. Sitting in the sun I would think the edges of a repaired area would want to start flaring out around the repair. I seen bondo used to patch dash cracks, but don't know how long it would last under a hot windshield.