After waiting forever for my LED light bar to arrive I have scoured the web for a detailed video or photos of anyone that has fitted it without drilling holes in their roof. I want to buy/make a metal bar that fits onto the gutter like this....

http://www.ebay.co.uk/itm/Light-Roo...ts-brackets-/390396709980?hash=item5ae5750c5c

the one above is for spots, but I can't find a detailed picture how the end bits look so I can make them.

This is the kind of light I have bought...though not from this exact seller.
http://www.ebay.co.uk/itm/Cree-42-2...eep-UTE-4WD-/381327905943?hash=item58c8ea1497

Could you base the design on a couple of CB gutter mounts, they'll take care of the clamping part of the bar. Something like this www.ebay.co.uk/itm/371002262879