Blender: How to clean up Text
Source Files
clean_up_text001.blend
clean_up_text002.blend
clean_up_text003.blend
You can [SHIFT+A] add Text and add a Solidify modifier to extrude to keep parametric rather than collapsing visual geometry to mesh. This way you can change the font later if you like. Will most likely require re-tuning some of the parameters though.
Tip: Throw in a Weld modifier to get rid of overlapping vertices where needed.