You could try bamboo flooring it is a renewable source and hard wearing try the colour coffee not too dark and not too light, make sure it is layed by a professional. If you like traditional wood flooring try French oak, it is on the lighter side not as hard wearing but I guess that will add to the character

You can definitely combine different timbers in your scheme. Furnishings will tie into your floors as a material rather than a tone, although the red tone in jarrah is quite dominant, it would be a mistake to ignore that. I would opt for warm pigments and colour notes, but not so light on the walls that you emphasize the red by contrast! Without knowing your stele in furnishings, interior directions, I am making suggestions on rooms I have seen or created that do work in this scenario. You will take from it what is relevant. I have seen a rich wine colour, which does look fantastic with timber furniture, it creates a moody ambience which is rich and has a sophistication to it. Lighting is key to creating a successful look with rich tones. This deep rich plum shade can be used for modern, traditional or specific interiors, like provincial or deco quite easily. Have you read pantones colour of 2015 is Marsala. Is a crimson shade, so you can be right on trend too. I suggest keeping your trims white to really crisp up the architectural details, ensure your ceiling are Matt white to absorb light and introduce texture to soften the look. Jarrah an look very formal, so if you have a glossy finish, bring in elements that counteract or contribute that same shine, as in metaliics or mirrors etc. Textiles in plush textures like tactile fibres layering pillows featuring cashmeres or velvets will add to the luxe and keep it comfortable too.

I don't know about the osmo, I have only looked at it on the net. If you are looking for the satin look, I can guarantee that is what you will achieve with three coats of the livos Kunos oil as I have used hundreds of litres of it. If you look at their web site it will answer all of your questions and don't hesitate to call them. I would also ask if they have a recommended floor sander in your area, as it is not your normal sand and apply. Keep the questions coming if you have any. There is nothing I enjoy more than knowing that out timber resources are being treated in the best possible manner. These shots are of my own jarrah floor that show the scratches from the couch and after 2 mins repair. If this had been a poly floor the only option would be to sand the entire house.

I love the look of painted floor boards. As history shows it's a very viable option as a floor treatment and has been used for hundreds of years. The only issue is, you can never bring them back to timber due to the seam but hey if you love it, run with it. We did it in my nieces bedroom on hundred year old jarrah boards and it looks unbelievable, there is nothing that can give that look.