I wouldn;t paint the BG. It will only chip on ya....esp. if you hit it with the preasure washer.
you can get textured powder coating done....or if you want more texture, for about the same cost, you can have it rhino lined. I thought I read somewhere you can not only have it colored to your paint code, but can alos have the desired texture added.
You may wnat to look into it.
Youre old truck kicks a$$ btw.
My local auto body is looking into custom pc'ing for me now. I want to go with a gunmetal color on the brushguard, tail light guards, hood handles, hodd buckles and that inset on the mirrors, and the H2 badges. The issue will be matching it as a couple of the parts are plastic and the rest are metal.
I'll let you know what he sais on teh powdercoating and textured finish. ...should know on on or Tues.