My basement flooded about 2 years ago right when we moved in. Tore out the floors, carpet, and the old 60s wood panels that were tacked to the concrete. No that drainage has been fixed and cracks stopped growing, I want to start re-finishing properly. I need some guidance on the following:

1. Basement subfloor. We are looking at carpet for the main area and then laminate for the landing, bar, and office/bedroom. Should I just pull the trigger on Dricore basement system, or is there a better idea for this? I guess there is DMX 1 step and OSB, not opposed to this either.

2. Floating walls. This has to be done in Colorado because of our fuck you soil that expands and moves. Should I frame the floating walls first then subfloor or do a subfloor then floated walls and screw through the floor into concrete (recommended by dricore)

3. Sound proofing the ceiling as much as possible with double 5/8ths or is there some better options out there?

Thanks a ton