Size of chest, Selective hearing, Bathing

I actually have several questions and have searched the archives but have not seen my exact questions / advise. I have a 16 month JR male, that should soon be registered (have sent all documents and fees). He is the center of our lives, but seems to still have some bad behavior.

1. Ace measures 15 x 15 and 19 around his chest. Is the size of his chest fine for his length and height?

2. Ace has "selective hearing" and does not always listen when told certain things, almost seems to test his limits when commanded.

3. We would love to show Ace and would like to know more about preparing for show in the Houston Texas area.

4. We would like to "stud" him, are there any sites / services offered to locate persons looking for stud service?

5. Ace has a 'broken coat" recently upon visting the Vet we were told to bath him every two weeks, what would be the recommened method to use.