Apologies, I know my first post wasn't very thorough. I know by experience that long and dry posts rarely get replies but I could have been clearer probably.
I was just hoping to hear how some pros would do the floor layers in the proposed simplified scenario, that's it. I have to do this part by myself because of timing reasons that are too long to explain and nobody cares about. And since this is the only part of the system that I'll be doing by myself, it's the only part I asked about in the original post. Everything else was just me addressing comments.
Anyways, I do appreciate you trying to help, for real. All the best to you mate, good luck with your stuff
