Private lending or stockpile cash till the next correction, I guess.

You can start stockpiling renovation materials by shopping around and getting the best price.

Take all savings from both investment and your job and stockpile it into more rentals that cashflow.  

They do not make public their stockpiles in or out of ground.

I'm curious as to what impact this will have on the economy and how to plan for it in a way that doesn't involve stockpiling food and bullets (not that there's anything wrong with being prepared!)

So lets say you follow and you have this huge money stockpile from it over a year is there any point like a per rental number were you just say ok this is enough in reserves i can pocket that 50 percent now untill i use those reserves for maitnance and such

-Cashing out while the market is high and have stockpile of cash to invest in a less expensive market or if there is a drop in the market having cash on hand. 

I would take the excess and stockpile cash until you can buy another unit. the rate for the LOC is probably really low so you don't have much incentive to pay it off.

I've got a few projects coming up and I want to stockpile on resources and standardize my materials :) 

I am interested in stockpiling materials (sinks, vanities, etc) at low prices for our rehabs.