Welcome to BABB Morris.
I'll be honest GR/SR equasions are beyound my math abilities.
I'm a Software Analyst and what math I once had learned has gone largely unused...
That being said I do however have a tallent of look at huge mind boggeling things, and finding the point of failure (or the bug) in them.
The only issue I can find with your work is that Gravity is treated as Wave Equasion, which we really don't know if it's a wave mechanic yet.
At this point of time there is some evidence that Gravity Waves exist, but It could also be that Gravity Waves are a funtion of fluctuations of Gravity, and not the true definition of Gravity itself.
I'll agree though that Einstien's Curved Space/Time model doesn't explain everything, and in a few very rare cases doesn't fit at all. It's good to see someone working on a new model based on what is known now.
I'm curious about a few things in your model.
How does the Anomolus deceleation of the Pioneeer probes fit it with your work? I can't do the math but wonder if your work might actually account for that somehow.
Can your model explain Gravity as a non wave with a instantatious effect instead of light speed limited, yet allow for Gravity Waves that flucuated at c? (Gravity Duality).
How does Superliminal space/time fit in with your model? (where a portion of space time moves faster then c, but matter inside it has motions at sub light velocities relative to the space time)