My Luscombe had a C-85 in it. When they made a cutout in the firewall for the starter, it pushed it back about two inches. I had to turn my toes on my right foot to the left to clear it when landing so I would have full use of the rudders. It wasn't comfortable and I would have gladly given up the starter!
Jack Fleetwoodhe has a C90 he's just bought to put in it, and has added a fan powered generator and will be adding an electrical system to it, although still plans to prop the plane for starting I think I unerstood.
1946 Cessna 140
http://flynlow.blogspot.com/
Round Rock, TX