A couple guys spotted my underpanel, and one just ordered one. He is putting his own mix of LED's in it to light up the road underneath. I said OK, if folks want this, I can make it for others too. It's not listed on my web site - I have to do edits without using my web authoring pkg which was EOL'd - I have since acquired a current copy of it, but that's not much help as they are not supporting importing my early database into it - so I have to do edits via Dreamweaver, which is much slower for me.
Not gonna be so blatant as to talk about price here. Just announcing I can make these for others. At this time I am not sourcing the LED fixtures as I don't have a supplier so would have to mark up from retail - it would be cheaper to buyers to source them, themselves. I got mine at retail at Autozone. There are plenty of sources online, including ebay.
Here's the box - it's 24" X 6.5", with 1/2" height internally. Made of 1/2" box steel tubing, sheet aluminum, Lexan, rivets, screws, silicon caulk, and a grommet for the wire port. Secures to the holes in the engine casing with 12mm pins and safety wire. I used a trailer connector for the quick-disconnect. It's made to stand off from the engine bottom a bit to allow air to get to the cooling fins on the bottom of the engine. It took me 2 days to make it so it's not cheap. In fact I would not do this if they all took that long. If there's interest I will make jigs for cutting and welding the frame together so I can reduce build time to half a day. Obviously, the Lexan has a protective film on it, both sides. The buyer will remove it after he installs his LED's. I suggested gluing them in with silicon glue, then sealing the Lexan on the edge and the wire hole with the same stuff to keep dust out.
Here's the effect of this panel with 8 LED fixtures from Autozone in it:
Another view, looking from underneath (meant to show the tires, so not the best):
