imacsae -
I got the skid plate for my ARB bumper from:

Keith Fritts
5111 Gordon Smith
Rowlett, TX 75088

Phone(fax?) 972-475-3027

Sorry, I don't remember the name of the shop.
The plate is made of aluminum 3/16 in. thick.
A piece of steel angle goes across the lower section to prevent the plate from bending if you hit an object.
With shipping to NY the total was $64

dave and xtoy - big cheese grater