I'm uncertain about trusting Amazon for something like this, because their return process failed so hard when an order I placed with them was not completed.
Basically, the retailer took my money, then all record of the sale was deleted from the system and I never got the item either.
And I was only ordering a customised iPhone case!

I haven't gone back to check the local Toyworld since I took that picture, but according to their online site, they only have Starscream, Ironhide, Prowl, Sixgun and Chromia in stock.

For the record, the next ones I am considering purchasing are Brunt, Cog, Sports Car Patrol (Blackjack and Hyperdrive) and possibly Shockwave.
Shockwave is the one I would have to personally examine to decide if I want him or not.

For Australian online shopping, I usually go here:
https://www.tftoys.com.au/product-ca...-siege-hasbro/
This is usually my retailer of choice for international:
https://www.bigbadtoystore.com/Search?SearchText=Siege