re the floor, what about garage matting tiles, as in photo attached, but lay them in a groovier pattern, perhaps a chevron or 60's pattern, if leaning towards MCM. It may not be any dearer than the cost after getting a tiler in, if laying tiles? Also, you can take them out to clean them if need to and change the look whenever you feel the need!

just had a look at your existing plans for the second storey.. 1/ I'd make it all open plan .. First I'd move your bed 4 downstairs into the theatre room..reason ? bathroom is existing down there..you can turn it into a master suite..bathroom..study as retreat. which then leave you all that room ..bed 4 ..kitchen ..meals..lounge..foyer to just be one huge living area.. from that living area you can pop in a stacker door/bi folds to lead to your screen verandah. Personally I'd get rid of the screens and open it right up with banisters so you can have fresh air flowing in. You can do the same with the front as well to make it one huge area without much changes.

Trace just came across your work. it is a joy to see the openness and relaxed feeling the space has given. No doubt there is more harmony in the house now. wonderful work. Cass

metal posts can be bolted to the concrete floor with a metal bracket called a "stirrup" there's a brand called Uni-pier with multiple sizes available at the major hardware stores and then attach sections of plastic lattice (friendlier for attaching plants) ...make sure the posts are installed at standard distances to suit the size of the panels..eg four panels 1200 wide x 2400 tall installed between 5 posts would allow for a wide doorway at one end or two panels could be installed horizontally between three posts with gaps at the top and bottom with a line of big oblong shaped pots for climbing plants and wall hung pots could be attached to the lattice