Thank you all for your comments.
I have 135 ingots with 45 lbs each. 100 of them will be permanently fit and properly stacked side-by-side in the center of the boat exactly on top of the forward portion of the keel. The leftovers of my epoxy resin will be poured on top. The other 35 will put accordingly to trim the boat with ¾ of full load when this floats in the marina, at the travel lift pool.