Creedmoor

My defrosters fog the windows more than they clear them and I'm losing a small amount of water over time from the expansion tank. I suspect the heater core has a leak. So, on an all stock 1980 Toyota Corolla 4 door sedan, what's involved in getting to the heater core and are they usually fixable? I think I remember hearing that you have to take the whole dash apart to get to it (groan )