I'm in the process of designing a bumper I want to build and I'm stuck trying to figure out how deep I need to make the bumper to fit a winch down in it. The attached pic will give you a general idea of what I'm talking about. Minus the 2" of steel tubing up front, how much space should I leave between the grill and the front for the typical 9000# winch to fit in there?

Thanks,
s