+1 for the Sovereign.
Its probably one of the narrowest cabins in the class but its runway performance just never gets old. Also the LaMole/Azores/NYC is doable privately. The aircraft is geared up for 180mins OEI and 1000 miles see here, theres not many twins in the mid size that feature this approval. Modern system design/ baggage fire protection/Long range O2 all help
Click Here for Sov 135 regs for certain routes
Early 2004-2005 680 probably 7-10 US$