Steel prices

Guy gave me a price on used but decent condition, light surface rust steel
4 pieces 4x4x 3 1/6 tubing saw cut. to 7'2''
4 pieces 16" X 16" x 1/4 plain plate sheared to size
4 pieces 7'' x7'' x 3/8 plain plate sheared to size with 4 9/16 holes punched in each plate
$750.00 cash
he has 24' lengths of the tubing so I need one length and im assuming he has a short piece or is cutting a length and selling me just the seven plus footer
The other plate is scrap or drop off from something they sheared for another customer
Again this is not new so I have to inspect it because I need to be reasonably clean

Anybody out there who knows steel prices are going per pound?
Thanks