Can we talk about a BASIC UNIVERSAL simple PV kit for preppers.

[Skvez]

I'd like to amend something I wrote late last night

All regulators can be paralleled but you might not get the benefit of both.
If you've wind and solar both feeding a battery bank you may find with some regulators that you get whichever is stronger. On a windy night the wind feeds the battery, on a calm day the solar feeds the battery. On a windy, sunny day you may end up getting the wind *or* the sun but not both but if the batteries are getting charged anyway do you care that much?
This is really only a problem if you're trying to feed two solar regulators into the same battery bank.