[Elecraft] [K3] FM filter schematics?

[Jon Iza]

Folks,
the KFL3-FM filter seems to be hard to get, but Chinese copies of the CW
filters are available at fair prices.
There is a page with the schematics of all the "narrow" Elecraft filters
KFLxx-A but not for the -B FM filter.
I have an schematic for an LC filter in order to listen with wide
bandwidths but would like to know which changes are required on one of
those -A filters, if possible at all, to get an FM filter. Most of other
references I have on ladder filters are for SSB or CW/Data narrow filters.
Jon, ea2sn