Frankly speaking: the Morgan City cooling kit was low cost so I would not think about fiddling around with my own develpoment. It does the job and that's why I got ot.
(I must confess my Morgan dealer is just 40miles away.)
+1 for me - and even easier as my dealer's only 20 miles away.
The standard shroud is a bit cheap looking so I had them paint mine gloss black which was well worth it.