I've spent a lot of time and kilometers on handlebars that weren't drops. And if you get something like the Rivendell/Nitto Albatross or Ritchey Kyote you'll end up with space to move you hands around for longer rides.
Ergon grips can also really help getting comfortable on flatter bars.
What guards? It looks good! I always fancy doing something like this but known I'd just get wound up at the 1 hand position