GrumF14,
Hackett does a stunning double breasted waistcoat in buff linen. My morning coat is mid grey with a matching grey DB waistcoat (also by Hackett), but if I was ever to purchase a black coat, I would go for the DB buff linen waistcoat.
Re the top hat, try Ebay, there is usually a good selection unless you are a size 7 1/2 or larger. A few stunners here at the moment:
Hackett does a stunning double breasted waistcoat in buff linen. My morning coat is mid grey with a matching grey DB waistcoat (also by Hackett), but if I was ever to purchase a black coat, I would go for the DB buff linen waistcoat.
Re the top hat, try Ebay, there is usually a good selection unless you are a size 7 1/2 or larger. A few stunners here at the moment: