Well by looking at those pics there, I would do a couple things different to help bending or damage to radiator or grille.
1) Since you have that winch reversed, I would weld in a support bracket to keep that winch from pulling upward and forward. I would weld it behind and under or over the rear of the winch mount. If you get torque pull during load, it is going to cause that winch mount that you have designed to either rip itself away and up which could cause damage to radiator and grille. I can not imagine that there is that much room for that winch to tuck under like the way you have it mounted high on the frame horns and the control box much higher than the bumper.
2) The stinger you got mounted there on top of the bumper is not going to make it if you happen to bump it against a tree or like, it is going to snap off. I say that because the diameter and hardly no forward angle on it. For looks and design factor, I would of made it out of round stock and since you mention you have no bender I would of made some wooden jigs and scured them to a bench table or something strong and flat and heat bent it to shape needed. Properly designed Stingers are to have degree forward mounting to be able to absorb hits and bouncing off objects without ripping off. And since your sq tubing is thin walled, it will just rip off after a bump or two.
If you are building that somewhere other than where the truck is, how did you get the right spacing and length for the frame horns, and to be sure you have no frame clearance issues along with the winch clearance issues?
