I wish I had the time and resources to do multiple illking.
I hunted around for you and for my point of reference to see if anyone was doing spindle style steel bumpers. There may have been some companies like ARB, but I think they stopped when the E-series stopped.
Aluminess has it cornered and they make a fine product. I just decided to try my hand at it. Surely there is an offroad company around that can fab one up for you if you are willing to give them some input and leave the van there so they can work off it.
here's my main support. 1/4" steel, heavy as all get out. Working on the swing arms and then the aluminum bumper itself. This is pretty simple stuff so far.