I have just taken a couple more pictures (excuse the untidy house) from the stairs. As you can see it's an open plan area that isn't that big but very high ceilings also in wood (Macrocarpa) with dark wooden beams. The house is surrounded by bush so quite a dark house. I initially considered a darker wood similar to the beams but not sure if that will make the house appear smaller / darker...I'm really not sure what to do!?!?!? Thanks

Photos would help us a lot but mint and grey usually goes well with charred oak.

Grind the slab!

Beauty and practicality; Mmmmmm ..... When it is something that you love .... real wooden floors. Now vinyl just gets dirty , Ply looses it functionality, real wood however gains a patina. You want that. People pay thousands of dollars for that. Go with the most genuine example that you can afford of what you love. Factor in your budget and add to it, an area at a time and be pleased that your life gives character to it every day. By analogy; A mahogany french polished table will just give you a nervous break down every time someone doesn't use a coaster ... a hardwood table can be replenished over and over with hard wearing protective surface .... which you can repair. If you love it, if it adds genuine warmth and character, you won't mind maintenance. You won't be saying ...." look at this floor , isn't it amazing? It looks just like the real thing?"