personally, I don't find either to be preferable. If the information is clear, from whatever agreed standard we use, then we might all understand what the drawing is trying to convey.
Like a lot of TC users I began with pencil and paper, drawing to British Standards in Imperial. I now use a PC and the metric system, I am comfortable using both, and, sometimes use both together! It's a case of whatever suits myself or the client, at the time.
So, your suggestion is potentially less cluttered, and may, as you suggest, be suitable for some talented programmer to provided as an add-on.
Either way, there's no harm in asking. Occasionally, thinking 'out-of-the-box' can produce something of worth.