I'm wondering if the Lionel F3 cab interior part (part number 610-8134-025) would fit in older F3s. Say for example a 2343 A unit (Santa Fe warbonnet) or a newer 18117 A unit (Santa Fe freight)?
How would I attach the interiors to these older pre-interior F3s?
Has anyone updated their older F3s specifically with the Lionel cab interior part?
The basic interior sans figures and control stand looks like this: