I went with Light... Max Speed 550 m/s, Distance: ~1800 KM can reach anywhere on kerbin, 6 Passengers and 1 flight attendant. Bonus Points:
Your plane cannot tailstrike no matter how hard you pull up on takeoff (20 points)
Your plane stalls at less than 50m/s (5 points)
Your plane can fly on 25% of it's engines (35 points Points Taken: Your plane solely relies on alternators on the main engines for power (-10 points)
Your plane can fly on any two engines.
Your plane has airbrakes Total Score: 830.5