I own no property in USA, and most of my legal/financial moorings are based on my location overseas: residence in Korea; bank is US but address of account is based on an Armed Forces Post Office; tax address is my Dad's home in Kansas; precious metal holdings in Florida; no US-based drivers license (lived and worked in Korea since 2008. 

It's virtually impossible to buy physical precious metals (for delivery) anywhere for any reasonable price. look at pretty much any asset.

Your kids will be gone before you know it, and you'll never get these precious years back.

And most importantly these high quality people will become precious assets all through out your life.

Time is precious and should not be wasted.

However, I don't see a problem with continuing to average in, even during a downturn.More importantly, I think real estate is the best hedge against the markets ;)And I think the next best hedges are precious metals and bitcoin.I think the dollar is going to see a real devaluation, and lose its standing as the world reserve currency, bitcoin as sovereign and decentralised money will take its place.

I'm going long on precious metal mining stocks.

If your priority is cashflow I would recommend Memphis, Cleveland, or Augusta.

Also when they are mining for kobalt to make your precious battery that according to you is infinity more efficient (which it's not because of laws of physics), they realase 8xs as much co2 as gas burning car does.

However, if one of you goal is to preserve you newly inherited cash, have you thought about investing at least a percentage of that cash into precious metals, like gold, silver etc.