Master Cylinder issue???

When my brakes went the other day I was able to remove both back wheels for inspection and then bleed the brakes. I ordered a new MC before checking out the fronts. Last night I took both front wheels off and found one of them to have brake fluid on it. As it turned out the crossover hard line was seeping some. I put a line wrench on it and tightened it down more since I must not have tightened it enough. Had my son sit in the car and hold the brake pedal down for a while with no more leak. I still am going to replace the MC at some point since I am getting the correct one for a disc/drum car.
Which MC did you settle on? P/N?