Tell us about yourself!
Great project! I'm pretty sure you could come up with a compound optical design to make the apparent distance longer (for focus) and still enlarge it. Might be better ergonomics to not have to shift your focus back and forth between your work and the image. Also lots of close-focusing predisposes to eyestrain. Just thinking out loud here, not in any way a criticism. Now if you just offer a kit... :)