Have you seen the extensive posts by ADAM FRISCH ?
He has posted fascinating accounts of his love-affair with a Rockwell Commander, it's trials, tribulations and upgrades.......then his change to an Aerostar....and it's use.
It seems Adam is going back to a Commander that's Turbopropped, IIRC. and he was/is selling his re-engined aerostar.
He's a man who lives your dream....take a look!