Sandy;

Chromogenic color films will be virtually impossible to recreate if there are none being made. Photos taken with tricolor cameras will work well and color bromoil will be useful in printing as will home-made dye bleach. It is possible to hand coat color dye bleach print materials, but dye bleach films with decent camera speed and with decent properties regarding grain are virtually impossible for technical reasons related to having the dyes present to begin with.

PE