Howdy. Perhaps the easiest is to provide links to a couple of sites that offer alternatives.
Excel User by Charley Kyd. I have worked with his material (he does corporate training) and spoken to him on the phone a couple of times about issues. His site is superb and well worth examining. For this project see about half way down the article about "Create bullet graphs". His entire site is worth exploring and learning.
Jon Peltier offers extensive help in charting. I think one or two of these might be what you need.
I wish I had access to Excel to help you - I would put together a sample, if possible. But alas, that is not.
HTH