Can you assemble lasagna one day, and then bake it about 24 hrs later?
Yes, and I find it taste better.  When I make lasagna I will not fully cook the pasta.  Instead, I keep a pot of boiling water and I dip the pasta into it to soften while I'm assembling the dish; the pasta is in the water for less than one minute.  The pasta seems to absorb more of the sauce, keeping the flavor but making a dish that does not fall apart as easily.