whats a decent weight and how long to get there?

I was skinny kid but on and off training and eating well im now at a whopping

5'11 and 150lbs morning weight, no clothes etc..bodyfat i guess about 11 percent or so...

Im thinking i need to be at least 170 lean at my height to be decent and at 180 look pretty strong/big for a lean guy type.

WOuld u agree on those figures? And how long before i could possibly get there with consistent training?