Your right on the night thing Chuck,
years ago I did see some guys take a 5 gallon plastic bucket with lid and they placed it around the nest.
chopped the nest of the branch and put the id on real quick.
only one guy was stabbed 3 times...
they filled the bucket with water till all where dead.
my advise: find a local beekeeper to help you, he has all the protective cloths and probably will do it for less that the pro companies.
wasp eat bee's so if you are lucky he will do it for free