I got what I thought was a reasonable price from my Kubota dealer for OEM weights for my L5740. What I mean by reasonable was about 85 cents/pound. Yes its more than liquid ballast and full weights aren't close to full liquid ballast but I support 18 tractors from 35 HP to 150 HP (BIL, cousin, and me) and we long ago gave up any hassle with flats ant the resultant liquid to handle.