Rolling cutter for excavator - 1/2 thick steel

Have 100 ft. long sheets of 1/4 to 3/8 possibly up to 1/2 inch thick galvanized steel material to cut. Is there some sort of rolling sheer with cutter wheels or nibler that is made to put on a 30,000 to 70,000 lbs machine that could cut this into 40 ft. lengths for semi trailer to haul?

Rolling cutter for excavator - 1/2 thick steel