Using a disc brake master cylinder in a drume brake car.

It is not an issue of $. I was merely asking if it should be done. I have actually seen it done on other '72 scamps with same brake setup. I will purchase the "correct" M/C. Thanks to all for their input.
I am not an auto mechanic. I joined this forum to learn. I have learned a great deal from this site. Now I know a little more about braking systems than I did before.Thank You again.