Since you have the Corban touring accessories on then why not have a car tire. It makes sense to me. Although, you are changing an already beautiful bike and making it look entirely different. Make it the way you want. We will go along but possibly talk behind your back.
If a man can afford a new Rocket 3 and afford to ad all the Corbin (like 6 grand) I would assume he can afford to replace the rear tire with the proper tire.