Dirtbag Climber

My Anti-lock Brake hydraulic control module is leaking a lot. It's been getting progressively worse for about 2 years. The vehicle is a 1995 Legacy L, 2.2, manual trans. question: 1) Is it possible to replace a gasket on the module? 2) If I do any work on it, what are the steps to clear the lines of air, are they the sames as bleeding the brakes? 3) Does anyone have a used unit that they would sell?