Engine build storage questions

I'm in a similar boat. Engine build is on ice while some other projects get taken care of. I'm keeping the machined block and crank in big clear heavy duty trash bags, and I inspect every couple weeks, and spray it down with WD. I buy the gallon jugs of WD and use their little sprayer.

You'd have to buy an awful lot of WD before you eat up the cost of ruining a machined block and crank.