To keep a stealth off road look, I think it's great!
But I'd run 1" steel tubing along the bottom of the front and rear bumpers, tucked up just enough not to be noticed but down far enough to scrape first on a steep approach or decent angle. Make sure they're still attached to the frame, front and rear to give good support without bending up into your bumper. And if you don't really like slider steps, do the same thing with heavy gauge steel rectangle tubing, maybe 1" x 4" x (whatever length needed) and run that along the sides, tucked underneath if you should need something to bang on!