If you find a protein that blocks the virus, how difficult would it be to find a drug delivery mechanism that is capable of reaching all the important cells?
Where the virus can go the antiviral can go too (because it's much smaller, only targeting a smaller protein spike on the surface of the viral envelope).
the main trophic target of this virus is lung tissue.
a nebulizer would deliver the mRNA-Fc complex to the lung tissue.
the other way around would look a lot like a classic vaccine delivered by injection, and encapsulate the mRNA into a vesicle that targets antigen presenting cells in the lymphatic system
which then presents the mRNA product as an antigen-MHC complex to specify what antibody to generate.
