With a foreign address can you buy both mutual funds and ETFs at Vanguard? You might be limited to ETFs, I'm not sure.
Right now $60 billion is invested in Vanguard Total Market ETF ("VTI"), which gives it a lot of stability. Vanguard lists the inception date as 2001 for that ETF, so 15 years of history. You'll note people who disparage ETFs tend to avoid providing examples about Vanguard's top ETFs, as most of the criticisms don't apply. And those are the ETFs you'd want to use.
You could make a 3 fund portfolio from Vanguard ETFs: Total Stock Market ("VTI"), International ("VXUS", or VEA + VWO), and Total Bond ("BND"). Your percentages may vary depending on your current location and where you plan to retire: the bias towards US stocks applies more to people who will retire in the U.S. than someone working abroad who plans to retire abroad.