Need help taking apart a 67 Barracuda grill

I'm delving into it and got some of the parts off.

Redfish: those little stabizer bolts are SOBs. I cannot get an endwrench on the carriage bolt nuts. However, I'm going to try to remove the bolts (inside the fender) that connect the "U" bracket to the fender. I can get a socket on those bolts. These bolts really slowed me down and I ran out of daylight. If those "U" brackets would have been designed to mount the other way, an endwrench could get those carriage bolt nuts off.

And "yes" to all that said things were very rusty under there, including that lowest panel that the license plate bracket attaches to.

Many of the little screws that hold on the trim, were missing altogether.