Near Impossible I tried to run to the strip and stealthing past creatures but there are either Deathclaws or Cazadors on the way so....Quite impossible.
I imagine it might be easy at like lvl 10 though.
I've gone past the Cazadores AND the Deathclaws at level 1 on my way to New Vegas, Cazadores were far easier though, Deathclaws are hard to sneak past or dodge, for the Cazadores, just keep running and jumping, don't look back, they'll only hit you two or three times, a few stimpacks solves that though, and there's some anti venom in the Doc's office at the start.