Mopar electronic distributor

OK, I've been carrying a spare Orange Box and ballast resistor in each of my MOPARs for years. Never needed 'em! (so far!)
An earlier post here said the GM modules fail "all the time". Somewhere I read that there are cheap GM modules and more expensive ones that are higher quality.
The same is true of MOPAR ECUs, I'm told.
My question is if I have an ignition failure at four AM in a driving cold rain how wet will I get changing out a GM module (assuming, of course, I have one)
I can swap out the orange box and ballast in under ten minutes.

ATB

BC