6 pot overkill IMHO on a Morgan unless you are going to race it on a track and en you'd be in modified. You can over brake a light car.
Depending on the application, Tarox 6-pot calipers often have a fairly small bore compared to a typical 4-pot. It's not so much about absolute clamping force but how this is distributed over the area of the pad, so may not be as over-braked as you might fear.
