FF requires no financial support, assuming the “unity” test is successful. Private money for engineering refinement will (IMO) be relatively easy to get after a world first like that. Then the process of licensing to manufacturers who fund their own plant and labor and raw materials and shipping and coping with regulators begins, and is almost cost-free.

Thorium reactors have the advantage of being able to “burn” existing waste isotopes from uranium reactors, and may well be cost-effective on that basis alone. They might be able to “give away” their electrical output at FF prices. But that depends on gubmint willingness and rational choices for waste disposal.