Hi Allsportdvd, I've seen some items you're after on the TFCCA facebook groups sales page, just depends on how much you wanted to spend.
You also might be able to find MP10 Prime locally at Toys R Us but it's fairly expensive last I checked.

Check out some of these links:
http://www.otca.com.au/boards/forumdisplay.php?f=13 (sales section of this forum)
http://www.otca.com.au/boards/forumdisplay.php?f=46 (third party section of this forum, sometimes third party sales are posted here)
https://www.facebook.com/groups/transformerscca/ (transformers facebook group, needed to join sales group below)
https://www.facebook.com/groups/tccasales/ (sales group)

Here are a few I found in the facebook group:
https://www.facebook.com/groups/tcca...97117580367197 (MP 10 Prime $230)
https://www.facebook.com/groups/tcca...37378966341058 (UW Menasor + PE upgrades $250)
I think these prices are before postage

Also here's a list of online stores you can check out, might find one or two you didn't know about before:
http://www.otca.com.au/boards/showthread.php?t=12563

Hope this helps