Love the Falcon 2000 but less range than a G200 and about $500/hr more expensive to operate than a G200. Although you can get a decent early SN Falcon 2000 with 6-8k hours for like $4M. If the wife objects to the cabin of the G200, the Falcon 2000 will also provide a larger cabin experience as well but still only 2 zones...
G450 you're going to be shelling out ballpark $10M minimum for a decent early SN on programs.