Sorry this is a bit late in coming - internet access and jetlag are conspiring against us!
This is a bit of a cheat, as we're actually in Perth at the moment, not Adelaide, but thought it would still be useful for some :D
OK - a couple of things I would do differently - a) take the stop over! I cannot stress this enough - we had to fly straight through with 1 hour at Singapore, and we are completely and utterly wrecked. Get some sleep at Singapore airport in the transit hotel if nothing else, your body and brain will thank you and b) don't stay in a hotel, make sure you get a short term rental for a few weeks - not knowing where anything is, is a bit of a nightmare and not helping with the feeling organised and unruffled feelings.
My main moans covered, an overall summing up of our experiences so far I guess.
Singapore Airlines Heathrow - Sing - Perth - check in girl was not a Singapore Girl in anyway - a miserable, trout faced old bag more like. Long story that I'm too tired to go into, but that wasn't a great start. We did have way over the allowance (she was only going to allow us to have the normal 20kg until I gave the Pixie death stare lol), and shipped it with Excess baggage - hopefully it will be here on Monday. 37Kg, 2 bags, cost £360 + the AQIS fee when it gets here.
The first leg of the flight was amazing - if you have the chance to sit upstairs in economy on the A380 (it didn't crash, so can't be that unsafe Steve ) TAKE IT - especially if its one of the window seat bits - you get extra storage lockers down the sides which gives you just that extra bit of room, and the attendants are so attentive its crazy. The food was super yum, but it is still a very long flight :( Singapore airport is amazing - feels so calm and serene. Really loved it. The Sing-Perth leg was horrid, really old plane that stunk of wee, was freezing cold (everyone on the plane had loads of extra blankets on them), the food wasn't as good, and I really really thought we were going to die coming in to land (possibly due to the wind?). Arrivals at Perth wasn't bad, very helpful and lovely - no problems bringing in any of the food we had with us at all.
Taxi to hotel, near Murray Street Mall, was $40 - Miss Maud's hotel is good if you like a very quiet early night (I think we were the youngest occupants by a good 40 or 50 years!), the breakfast is AMAZING! Perth is very hot. but the breeze is lovely.
Transferring ownership of a car in WA is as easy as, the hardest bit is the wait at the DVLA-equivilant offices, but there are chairs, air con and a film playing so not all bad. Validating bank account, very easy as well, although we didn't have our bank cards there as promised, which was a bit annoying, but then we were going to have to wait a week for the debit/Visa cards to come through anyway, at least I now get to have one in Hot Pink, which is nice. The staff at the branch couldn't have been more helpful and lovely.
We haven't done anything else, other than but the camper, as we are so so jetlagged its not funny. Will sort our medicare and stuff next week - this weekend will sleep! lol
Anyway, not a lot done, but I instantly feel relaxed and happy here, so hope that continues :)
Will not be around again for a few days whilst we continue to sort our lives out, hope everyone is well :)