Highly Hypothetical Heterodontosaurus

What would Heterodontosaurus look if it had soft tissue covering its big pointy teeth and beak like the lizards Leiolepis and Uromastyx, had lizard-like lips instead of the more popular (but not necessarily more realistic) cheeks and filamentous integument similar to Tianyulong or Kulindadromeus? Something like this, perhaps.

This was actually inspired by Marc Vincent's blog post on the famous 1978 Nat Geo dinosaur issue at Love in the Time of Chasmosaurs. Restoring Heterodontosaurus with lips that hide the famous fanglike teeth may have become unfashionable since then, but what if it's actually what the critter looked like? I'm not certain that it's fully accurate, but sometimes you just have to take things to extremes and see where you end up.