Here's the AC III launch kit for sale
http://www.ebay.com/itm/Assassins-Cr...item4d0842e671
Not sure on the price though but you could make offers. I believe he is a member on here so you could try pming him about it.
That AC II kit though is just about impossible to find so it may be a long time before you see one and forever until anyone sees one at a reasonable price