Well, that's a good question! Looks like people are not fond on dressing our male Simmies in 3 piece suits! I scanned my own files and could find only two choices. I also scanned the leading sites; and I think you did it too before asking; but I could find only what I already have and nothing else.
Go see if you like what I found:
http://www.modthesims.info/d/200556
http://lidiqnatathesims2.webs.com/brides.htm