I doubt you're going to find that EXACT bench ... the website says they are custom made to order in Australia. For something 'similar', I would google image search 'tufted modern ottoman chrome"

Hi Susan, is there a Walmart over there ? I'm in the USA. Just curious. Well here's a link you might like http://www.pinterest.com/pin/448741550341372457/

Before replacing your curtains as this can be quite expensive for such a large window, if they are in good condition, add a band of extra fabric to the bottom in what ever suits you, your existing curtain track can then be moved up to the ceiling for good looking full length curtains without the large round eyelets, could save you a lot of money, I would look at replacing/removing the sheers cheers

It probably depends on where you live. If there are lots of families then i think the 4 beds would be the preference, 3 brms are a lot more common so often 4 commands a premium. An ensuite is always desirable but i would probably just look at converting the linen into another toilet. And create built in storage in all the beds