can an A-body tow?

If you have a Diesel pick at your disposal, it's a no brainer!

My Diesel Ford gets 17-18MPG towing a loaded open trailer,, complete diamond plate decked (heavy) at 60 mph. I doubt an old A body is gonna do that and as safely. Even using a dolly, use the truck would be my 2 cents.

Diesel is 4/gallon, gasoline is ~4/gallon... isn't any substantial difference is cost per gallon.

Light stuff isn't a big, deal, when you start towing items equal in weight to your tow vehicle, you need to be on your toes.