The cuffs for the mid-century coat are tiny garments unto themselves. Here they are with one inside out to show the interfacing. You can see there will be four buttons on each to match the pocket flaps.
These babies will be non-functional and stupid large (though not as ridiculous as say the 1740s.) I may reduce the length of the interfacing slightly to have more to turn under, into the sleeve. Next time we start fitting the body.