Downey Offroad is in Santa Fe Springs, CA (605 and firestone I think). 1 block north of Firestone and Pioneer.
Anyway, they don't have any in production but I know they have the layout/dimensions done so I don't see why they can't make one for ya. Just call em up and ask if they can work something out for ya. I'm pretty sure they'll be able to do something.
Another option is hitting up Jason at Demello Offroad in Santa Ana. He's done all my armor work for me and was going to do the skids too but Downey made one as a gift for me. Anyway long story short, I know he wanted to do one so maybe you can hit him up instead. [email protected]
He's located on Grand ave in Santa Ana off the 55 and Edinger ( 2-3 blocks south).