Hi Steve,
Looks like you have your hands full, but it should come up well if you get the bits fixed up.
Was that the one advertised on Gumtree by the way?
The sun in Aus pretty much fries most plastics, leather and wood to a crisp unless its looked after but you may be able to (as you say) flat the wood back and re-varnish and have it come up good.
Im in Perth BTW...a sweltering 41 today
Food for thought but the AU customs HATE plant material (so that includes wood) and you may find you are slapped with a treatment cost before they release the parts (if you get them sent from the UK).
http://www.agriculture.gov.au/import/goods/timber
The treatments they may impose could be potentially damaging and costly to 40+ year old parts.
Id hate to see a perfectly good set of interior trims ruined because of the Biosecurity laws.
I dont have many spares, but sing out if you are really struggling and I can look out for you locally in WA.
Oh..and start a restoration thread as well. You`ll get lots of help with the tasks from the folks on here.
Cheers
Andrew