The only things that would really matter are the exhaust and intake. You can coat or put header wrap on the exhaust manifold, and use heat reflecting tape on the intake piping. Nothing else will make a difference
Is the gauge above halfway? If not dont worry about it. Engine bay temp doesnt mean much. Every car gets hot after driving it....Also, another reason I ask is this specific engine seems to get OVERLY hot, but that is one thing I will address when I fix it up, it does need a new rad, etc.