I picked this non runner up a few weeks ago.  I have been thinking about a sidecar rig for awhile and this one came up so I have a new project for this winter.  Parked since 2009, unfortunetley most of it outside by the looks of it.

1997 BMW R1100R with a Champion Escort car

Hello, hate to hog this site but' my first bike when 16 years old was a BSA flat head with sidecar for 20 pounds stirling.

Tracking is important ball park 1" toe in over 8-10ft.

Brakes are also important as the chair will want to swing around the bike if there is no chair wheel brake. (not that unusual). Bernie Knickleson's book, had it all in there. Cannot find it now. Bike should lean out a few degrees to counter the geometry  when the weight of a passenger changes the vertical. 

Feel free to contact me if I can help with info. Paul.