- Remove wooden floor
Drill holes around screws, then pop out panels. - Remove silicone joint
Use 80 or 60 sanding disc with a grinder. - Grind rust away
Use 80 or 60 sanding disc with a grinder. - Apply rust converter
Paint the grinded spots with a rust converter.
Clean grinded spots before applying the rust converter. - Clean container
Remove dust/dirt and rust converter leftovers from the surface.
Like washing a car. - Apply zink primer
Paint zink primer on the grinded spots.
Roughen the spots and clean with alcohol before painting. - Seal floor with plates
Make PET panels or buy PVC panels to install basic floor.
Also find a way to seal of panels, ex. use molten HDPE/PET or similar to seal the openings. - Basic floor
Lay insulation matt (ca. 1cm Aerogel) on the floor
Lay a rubber matt - Standartized room
Jam on Aluminium profiles into the container, to create a fixed sized room