Is there any way to PERMAMENTLY eliminate rear main oil leaks?

I'm going to reseal mine soon and when I do, I'm going to completely eliminate the oil pan gasket and go with all RTV. Probably do the timing cover, too. The pan and block mating surfaces are all smooth and flat, so it will seal like a big dawg. I'll probably replace the seal too while I'm there. I cannot decide which. The one piece seal I'll need to at least loosen all the main caps and pry the crank up....which I'm not afraid of doing, so that might be what I do.
I'm not slant 6 savvy. Rope or 2 piece rubber?