Also, cut back on egg yokes
The yokes are the most nutritious part of the egg! Almost a complete food, except for vitamin C (which the chicks will be able to make for themselves.) The book that reinforces this point is Roger J Williams THE WONDERFUL WORLD WITHIN YOU... which the Riordan clinic has posted online https://riordanclinic.org/wp-content/uploads/2014/12/The_Wonderful_World_Within_You.pdf
Linus Pauling, in his book, not only recommends the entire egg, but takes time to point out that there is a feedback system, so that if the intake of cholesterol is too little, the body will make more of its own. Cholesterol has many vital functions, including detoxification. And yes, cholesterol becomes elevated when a person is fighting heart disease, but it is not the cause of the disease, but rather the body's reaction, i.e.,a symptom.
As far as Lp(a) and LDL, yes, Lp(a) is a form (subset) of LDL (with a sticky apo(a) attached to the surface.) Many of the Lp(a) numbers thus appear to be nonsense, perhaps because long ago the FDA allowed labs to "compute" Lp(a), rather than actually measure it. And even measuring it could be misleading, because the size of an Lp(a) molecule can vary, I think Pauling said by a thousand fold. The smaller Lp(a) molecules are more "atherogenic", i.e. more prone to cause the build up of atherosclerotic plaque. So the absolute weight may not be indicative of the risk.
If Lp(a) is present, then again, the Lp(a) binding inhibitors vitamin C, lysine (and proline) would be of value to help prevent the Lp(a) from forming plaques that impede blood flow. Since the Pauling/Rath theory is that these Lp(a)-plaques are acting as surrogates for low vitamin C (which would otherwise strengthen the artery from the increased production of collagen), everything depends on higher doses of vitamin C.