Originally Posted by LeviMay
I think pic #3 looks the best. If it's an event calling for morning dress, might as well go the whole hog.
I would switch out the tie, however.
+1 for the most part. Definitely switch out the tie. If you're going to a wedding, I'd wear a traditional wedding tie in the grey range. If it's not a wedding, you can still wear a wedding tie, but I'm not a fan of the burgundy one you have on for morning dress (it would be fine with a lounge suit). You don't get many opportunities to wear daytime formalwear, so you might as well take advantage. I also don't think it looks like a costume, especially if a decent number of people around you at this event are wearing it.
The more practical (and less fun) answer is to go for the stroller. You can probably wear that on more occasions than a morning coat, and a stroller is much less conspicuous than a morning coat at events where most people are wearing suits. I'm seriously considering having one made to wear on special occasions (Easter and Christmas Mass, etc.) or daytime weddings where it could possibly be appropriate.