You can try mix the a sample of molecular weight ladder with a little of the coomassie solution diluted prior to load it on the gel. So well, you can mix it with a few of silver nitrate.

If you are going to stain your gel after you run it, then you do not need to stain your MW ladder before loading it. Many years ago when I first learned how to run protein gels, we never had any pre-stained markers; they were all unstained, and we did not see them until the gel was stained.