If you're a recent PPL it would be wise to consider your aircraft aspirations in terms of stepping stones. Stepping right into a continental performing six seat aircraft may be expecting a bit much of yourself. Asking for a quote to be insured on such and aircraft could be a helpful indicator of this. Certainly the responsibility you take when you take five passengers is big. Five more people each with their expectations and agenda can put a lot of pressure on you as a pilot to undertake or continue a flight which may be pushing your skills. You and two passengers should be your early piloting objective. Consider a decent four seat aircraft first, and build your experience for a few hundred hours, and a few distant trips first. A Cessna 182, or Piper Dakota could be good choices.