Q's: Race Hemi A864-A990 Fenders?

Just curious, but does anyone know what these factory fenders weigh?

-What do 1964 A-864 Aluminum Race Hemi Fenders weigh compared to their steel counterparts?
-And what exactly do 1965 A-990 light gauge steel Race Hemi fenders weigh compared to their stock gauge steel counterparts?

Thanks in advance guys...

Don't know about the rest but 65 light steel fenders are about 20.5 lbs. Weighed both Dodge and Plymouth, about the same for each. May get around to weighing a stock 65 Plymouth fender this weekend just for laughs, have to get it off the car first though.