Dear Randy Wayne,
You've chosen a very significant topic, of obvious importance to both physics and biology. I agree with your insistence on finite size, non-zero momentum and ever-present spin that represents rotational motion.
I further agree with your equipartition of rotational and translational energy, and call your attention to the reduced equation [ curl C ~ p ] in my essay, The Nature of the Wave Function, where curl C is the rotational circulation of the C-field and p is the particle momentum. Observe that, as in your model, the rotational term on the left balances the translational term on the right. If I may suggest it, the photon 'particle' plus the local 'wave' component -- always present -- might be analogous to your 'composite' photon. I did not find an exact description of the composition of the photon and I hope you might consider the C-field as the second component in your model.
I am extremely impressed with your derivation of the 'double deflection' which appears to be unique. Congratulations.
I hope you will read my essay in the context of your own and will comment on my thread.
Best of luck in the contest,
Edwin Eugene Klingman