The Wing looks all right as much as you can tell from a couple of pics. The sidecar is an American Eagle Spirit , It is a really lightweight car better suited to lighter , say 650cc and under bikes.It's pretty outmatched by the weight of the Wing.
As far as attachment points , I couldn't tell much of anything from the pics. Best to look at it in person.
RR's Catnip Hill to Peoria ___Loopin' Seattle to WestFest
It started with some beers __1500 miles to the Dentist
Skeedaddle to Seattle______ A 30 year old on a Three Flags Run