I was at Team Aquatic Supplies last week and they had some shorts and bathing suits that had "lifeguard" on them... give them a call and see if they have the whole set up. I don't think they'll sell the rescue tubes but you can try the lifesaving society
http://www.lifesaving.org/shop.php?cat=7 for those...
Is this for an outfit? Or am I going to see you next week when I start my NLS course?