Get the professional sander guys in to repair the living areas and kitchen but don't go too dark with the stain as it will kill the lovely grain in the matai. I'm thinking a couple of tones richer than the timber knots showing in your photo, definitely no yellow tone at all. In NZ stepping on to carpet especially in a kiwi winter is so much nicer than a cold floor board shock!!! A nice area rug for the lounge and you're done.

Personally I think the curtain colour is fine, but your header tape needs attention and for me I'd have them taken up so they hang to the floor rather than on the floor. If your hubby is handy maybe get him to make u a box over the curtain header & stain/paint it to match your furniture. Or put up a pole in matching wood.

There are some great comment here, but my take on this would be if you are going custom to take your time and look around. Many designers offer different takes on each person's preference. The colours you have are good but I'd personally would opt for a more warmer cream, with a self print pattern. I would also suggest pinch pleated curtains and not pencil pleat as you have currently, pinch pleated curtains will give you uniformed pleats from top to bottom. In addition to this I would suggest you use blackout linen to prevent light to enter the room, and possibly interlining so that you retain some thermal properties in your fixtures. Having custom made curtains are a lifetime choice for most customers, take your time and don't settle for the first company you come across. The space above your bed i would possibly add a sheer fabric roman blind which is slightly see through but enough to give you privacy if you bedroom is situated on the ground floor. You can also get the a roman blind to match your new curtains if you'd like a more repetitive theme in your bedroom. I would suggest if you do opt for a roman blind, and you are looking for a good qualities add blackout linen. If you would like a rough estimation on what you would be looking at we can assist you so you are aware of what most reputable curtain making specialist charge in this current market.

If it's brand new, have you tried asking the supplier what they recommend? We got a booklet from our supplier when we got new carpet with ways to treat various stains on that particular carpet. Each kind of carpet will be different. Also, have you tried a professional carpet cleaner? If all else fails, try your luck with your insurance company - I know others who have got carpet replaced because of bad stains - depends on your policy.