Looks good! I think that all which makes the typical ebay-special HID conversions so wrong for public roads can actually be useful in off-highway situations where fairly unfocused light all over the place is pretty much just what you're after. I do have to caution you on your overhead floods wiring tho - you have 6 x 55W lights all together for a total continuous draw of almost 30 amps, you're likely pushing the limits of both your relay and its fuse w/ that (unless you used a 70-amp relay and a maxi-fuse). Remember the general rule of thumb is to keep the continuous draw at 80% of the load the components are rated at, my personal spin on it is no more than 200-220W of lights (so four normal ones, or two of the 100W kind) per single 40-amp relay. So I'd suggest that you split your overheads into two separate banks, you already have two power feeds from the relay to them so it shouldn't be much more work to just add another relay and fuse in tandem w/ those already in use (common trigger and ground will work fine, no need for separates there).
One concern I have w/ LEDs is how cool they run - I've driven thru some snowstorms bad enough that the nice and hot halogen lamps had trouble melting all the white fluff that tried to stick to them, I'd imagine LEDs in those conditions will quickly cover w/ snow and force you to pull over and clean them. Should be no problem for LEDs used as work or backup lights tho. Recently there was a thread on the ExPo board about some "no-flashy-brand-name" LED light bars that actually worked real nice and were of good quality and very reasonable price, about $40 per 6-pack unit IIRC, lemme see if I can find them again...
By the way Otahyoni, I recently scored a pair of PerLux 600-series fogs for $17 - will need some parts, but even then I'll have in them less than what Hella wants for one of their good fogs or driving lights... Eat your heart out, lol!
