Field report: i stopped by to see the plane at 11:
Post# of 41413
The plane had cockpit stairs connected and looked smaller than I imagined. It looks a little out of place that it deserves a nicer airport. Willow run has a nice set of runways, but the buildings around it are not that impressive. Trying to find the hangar in the dark, we ended up driving around the whole airport by accident and did see hangar south which has the Kattia planes and facilities.
N706BL does look nice enough to be accommodating to affluent passengers. I'll upload pics when I can get them off my dads camera this week. All engines were present etc.