You can buy directly from doggles.
http://doggles.com/
And as for taking him with you, how about the pouch that hangs in front of you? Like a reverse backpack? Something like this:
http://www.jbpet.com/Shopping/produc...ame=CratesSoft
I know there are several people here that rides with their babies. I think that what they use... Let me see if I can find the posts with pictures.