All done. Soffit holes covered with grates. Looks fine and I doubt I will try to actually repair the holes. Everything seems to work. The install crew thanked me for making sure all my 'stuff' was out of their way so they had plenty of work space.
And of course the high temps for the next week will be so low that I'm more likely to need my furnace than my AC. Such is springtime in the Midwest. But now I'm ready for the ugly part of summer to come at me.