Dura Glass is your friend!

Just remember its a bitch to sand make sure you have some 32 or 80 grit to break that shit down... and some 120 to make it smooth.. the grill on that ss truck was all smashed in and there were rust holes... Its worth the 14.99 a can...
dura galss sets up just like fiber glass structurally strong... then a little bondo to fill any coarseness the dura glass left behind.