Don't be confused by the "alternative facts" offered by some posters.....
The Lindberg "32" is kind of a joke by current standards. Don't bother with it.
Revell has the 1/25 scale 32 Ford roadster (highboy) you want...currently out of production but it should be very easy to find.
It has the separate frame you want.
Various Revell kits can provide all the parts you need to build either a new or old style 32 Roadster, and the aftermarket has even more parts for your project.