Thanks! Yeah, makes sense why I couldn't find anything about starliners. You've definitely helped point me in the right directionK now I'm confused. From another CABE thread on the subject:
"There's no such thing as a Starliner. Somebody made some mods to a '64/'65 Ladies Deluxe Spaceliner (Model 46911), and labeled their creation a Starliner using stick-on letters. You can verify this by looking at the serial number on the rear dropout and comparing it to the serial numbers listed in The Ultimate Sears Spaceliner Reference."
So I don't know what you have. Hopefully someone more qualified can help you figure it out!