To darken red, add blue. To lighten, add yellow.
Please do post pictures when you're done... THIS I gotta' see.

What you don't think it'll look good ?
MILITARY HAS: Green camo, tan camo, and grey camo.
I've seen: brown camo, blue camo,and orange camo. . .
Why not RED! ! ! ?
a Truck is huge has gotta have an interesting new twist to it. . .go big go all the way. . . have fun is what i say. . .
Mike