Oh I meant plan out the furniture/kitchen/bathroom ahead of time.
I agree - you'd do a lot of your styling, sourcing and pricing beforehand - well, I would anyhow - and then adjust it to fit whatever you are given.
It's a given you'll be in a capital city, so I be heading down to the local Bunnings, Target, Ikea, Freedom, Reece etc, see what is available and make a general plan.
I'd also be buying, via ebay, all my sheets, towels etc for the whole house in the first week. If I ended up with extra - so be it. Still cheaper than buying at the last minute.