One should keep in mind that Boeing's tankers will probably not be built in Washington state, because you point out, they have a big backlog for 777 and Dreamliner orders, and well as the 747-8s ordered by Lufthansa and Korean Air. They will probably be built either at the old McDonnell Douglas plant in Long Beach, California or at Boeing's defense airplane plant in St. Louis.
As for the ideas of Australia doing what India did, the RAAF is closely linked with the Americans and NATO. There is very few cases where Russian aircraft are used by a western nation, about the only one of any consequence was the MiG-29s operated by the Luftwaffe after the reunification of Germany. India does not have such ties, and they can push far more generous contracts than a smaller air force such as Canada or Australia simply because the Indian Air Force is several times the size. As appealing as the idea of Sukhois for the RAAF looks, its not gonna happen. As far as Carlo Kopp goes, he's a moron, but even morons make good points once in a while. Australia's F-111s shouldn't have been retired - say what you like, but the ace card of the F-111 for a country like Australia is that it has ridiculously long legs, better than twice the combat radius of the Super Hornet. Some of the ideas put up on Air Power Australia, such as converting ex-airline 747s into very large tankers, are actually pretty smart. I happen to agree with him on the F-35 as well - for a large area nation like Australia or Canada with a small air force, the Lightning II is not the best choice of fighter, especially since both countries have somewhat inadequate SAR capabilities.