I am of the opinion that you would do well to go with the beige chinoiserie waistcoat, the red cravat and the morning coat. After all, a morning coat is much more practical in today's hectic life. A tailcoat could cause some minor problems, when - for example - seating oneself on a public conveyance or in a hansom cab. As far as headwear is concerned, I venture to suggest that a top hat might not be the best choice of headwear. My humble suggestion would be a bowler hat or perhaps a billycock, which would facilitate the entry and exit of a public conveyance. All in all, though, your choice of wardrobe seems to me to be admirable.