Engine build storage questions

Guess I'm lucky since I'm in Colorado and the humidity is very low, both summer and winter. My 440 build for my truck kind of stalled out, rods are assembled to pistons which I keep indoors and the crank is assembled into the block with main bearings and rear main seal but that sits in my garage on a stand with a plastic engine bag around it. It's been sitting since early summer though, might be a good idea to check it over. I could probably start assembling the pistons/rods into the block, just need to check ring gaps and potentially buy a ring grinder.

FWIW I feel like wiping down the cylinder bores and critical machined surfaces with motor oil would last a lot longer than WD-40 or penetrating oil. Better yet put something lighter like 5w-30 or 0w-20 in a spray bottle and use that.