Sorry, but putting 80% of your portfolio into precious metals/mining is a terrible idea. Maybe it makes sense as some sort of short term play if you feel that there's going to be a serious financial crisis, but even then, 80%?
Gold is going only one direction long term, down. Smart people do not bet against technology.
Gold is going down against what, fiat? I anticipate the US dollar going down from the current high faster than gold (especially as measured against Bitcoin and Monero).
Let's remember that the gold standard is a form of technology too, entailing remonetization of our favorite barbarous relic.
Technology is only a tool, subject to the whimsical uses and fickle notions of socioeconomic majorities.
EG:
The Russian central bank opened its first overseas office in Beijing on March 14, marking a step forward in forging a Beijing-Moscow alliance to bypass the US dollar in the global monetary system, and to phase-in a gold-backed standard of trade.
According to the South China Morning Post the new office was part of agreements made between the two neighbours "to seek stronger economic ties" since the West brought in sanctions against Russia over the Ukraine crisis and the oil-price slump hit the Russian economy.
The new central bank office was opened at a time when Russia is preparing to issue its first federal loan bonds denominated in Chinese yuan. Officials from China’s central bank and financial regulatory commissions attended the ceremony at the Russian embassy in Beijing, which was set up in October 1959 in the heyday of Sino-Soviet relations. Financial regulators from the two countries agreed last May to issue home currency-denominated bonds in each other’s markets, a move that was widely viewed as intended to eventually test the global reserve status of the US dollar.
Speaking on future ties with Russia, Chinese Premier Li Keqiang said in mid-March that Sino-Russian trade ties were affected by falling oil prices, but he added that he saw great potential in cooperation. Vladimir Shapovalov, a senior official at the Russian central bank, said the two central banks were drafting a memorandum of understanding to solve technical issues around China’s gold imports from Russia, and that details would be released soon.