You dont necessarly have to go full bars, the rigid leds come in three beam patterns- Spot,Flood, Spot/Flood Combo (driving). Plus there is a diffused lense to spread the light out wider and closer.
Two of the diffused floods on each side would light up pretty good. Youtube has a ton of videos of rigid lightind.
http://www.rigidindustries.com/D2-Di...wo-p/50251.htm