On point 5, It has been firmly suggested previously, I must find a way to experimentally validate the idea, If red shift variation is present then an iterative approach to test the initial premise may have legs.
On point 3, space can contract but in the absence of mediators it will expand. That is why at the outer reaches of the observable universe there is acceleration of expansion. The lower density favors space's fundamental nature i.e. Kind of gets rid of the need to worry about dark energy.
On point 4, sorry I was not clear in my thoughts, my comments on point 3 explains the dark energy bit. As for dark matter I see it as part what real matter does to space in mediating it's nature.
On point 6, firstly at least I have an experiment and if correct it can be fed back into my initial proposition/thought experiment. Secondly I am on this forum to test and share my ideas. I acknowledged at the outset in my first post. 'Apologies if I'm an idiot. Thoughts?''
So if my ideas are of any worth, at least I am in the fortunate position in terms of financial capability and time to collaborate with someone who has appropriate mathematical talent, and is interested in adding to humanities collective knowledge.
Lastly does anyone know if there has been a study done on red shift variation on a within a distant galaxy?