Alright doc, you're the scientist so you'll have to correct any mistakes in my math.
According to the HATE speech, AM has 387.44 million miles of circuits. We can reasonably ascertain this is a combination of computer parts such as PCB boards, chips, and cooling components.
Now, the average computer contain 1/5th of a gram of gold. As AM is described as a "complex", it's likely he is many integrated computer systems, and is not simply a single gigantic Hewlitt-packard. There are many standard panel sizes for computer PCBs, and seeing as AM certainly needed mass production to build, it's the most likely outcome.
As board panels measuring by 12 inches are a common size and it's easy to calculate. If we apply the same computer standards to AM, that means using a metric of 1 computer per foot, there is a fifth of a gram of gold time the 5280 feet in a mile. Ergo, every mile of computer has 1,056 grams, just over a Kilo of gold. This is assuming they're in a straight line, and not square miles.
With this in mind, 1056 times 387.44 million equals 409,139,640,000 grams of gold. Or in industrial terms, 409 million kilos. There's currently estimated to have been 200,000 tons of gold. Converted from kilos, that 450,845 tons. That mean currently, with the CONSERVATIVE estimate for AM, there exists more than double all of the gold ever minted in Human history in that robot. I NEED to get inside that Robobussy.