Somewhere I saw somebody selling partially built bumpers with an integrated winch mount.    If I remember correctly it was kind of a box the mounted to the frame rails that you put a winch in and built whatever type of bumper you wanted around it.  Should have bookmarked it.

Shrock Works

http://www.shrockworks.com/zukfrontbumper.htm

Look for the DIY bumper kit

Thanks, thats just what I was looking for.