Check the business thread mate.
www.kpd4x4.com is the website, but i don't have everything listed there. I can get pretty much anything so just shoot me a PM with your inquiry.
Maybe Hanma have updated or changed their lightbars Shep as the last lot that came from them over a year ago now were cast housings and pretty bad quality when I was doing testing. When i said lexan, there are different grades of optical quality polycarbonate as far as I'm aware. and a lot of bars use only a diffusion lens on the front meaning alot of light bounces round inside the housing before it heads out of the bar. Individually reflected LEDs on a bar will give the best/better result.
I have a 30 inch Lightbar on my sierra windscreen frame. You can fit a 40 inch but it will be full width of the frame...probably like Sheps, but i haven't seen a pic of his.
Sideways i'm sorry mate its been a busy week. You have a PM buddy.