I was able to get lead tire weights from an auto shop. I cast them into the shape of small muffins (the steel mold I found on hand), then got smarter. I shaped wood blocks to fit in a compartment created by structure holding the nose gear. I then built molds to fit the plugs. The weight is far enough forward (and I'm big enough) that I don't expect to use any more ballast than this 17 lbs, even when solo. But I have two more large bricks , able to shift it between the forward compartment and a holder just behind the front seat.