I didn't see any replies to your questions so I will answer as best as I can. Yes they will be loud, not sure about the wear of tread on these guys. You will more than likely have to trim with such a wide tire. It is doubtful that when they took the measurements they took into consideration the tread depth so it will probably be sitting up a bit taller.
I realize this is pretty late and you might have already purchased them. Let us know if you did! The tires do look great and would be interested in the feedback myself.