WIth George and Batum both similar to Pierce I'm not sure those owners would make the trade. They would be giving up a very simliar player, some would argue the better player, for someone who is only SF eligible.
I think you'd have to either aim a little lower, add someone else to the deal, or go after a PG/SG who might have different strengths.
I own Pierce, George and Batum in different leagues, and really don't think I'd give up either Batum or George for Pierce.
If this is a keeper league, then take everything I said and times it by 5 lol.