Well, personaly I logged over 75 hours in the Eurobusiness Concorde and was devastated to see her retired. Flying Concorde is a treat. Flying Concorde for a VA adds to the enjoyment. Many other VA's have brought Concorde back into their fleet. Perhaps EHM would consider it?

No FO or Engineer? I don't know many real-world 747 captains but, the ones I do know say it is near impossible to fly 747-400 with only one pilot. Even a real-world 767 driver with whom I had the pleasure of sharing a red-eye flight was emphatic about the difficulty of flying even a 737 with only one pilot.
I've flown with the PSS Concorde and although the realism is intense, it does take away from the enjoyment of flying the aircraft. Flight Simulator is realistic in principal. Flight Simulator does a great job of simulating air rules and general procedures. No matter how advanced, not even PMDG comes close to flying the real thing.
So just jump into the captain's chair of an A380, Concorde or something from outer-space and have fun.