I am looking for a good source for tattersall shirts in larger sizes. Think 19"-20" neck or 3-4xl. Google is little help and where I live the made-to-measure options are very limited. So my fellow GOS of the Rabble, where do you buy your tattersalls? I would love to find an American source so the shipping will be less, but I am very open to overseas shops.

Alternatively, does anyone know of a good MTM option online? Kilts and jackets can be custom made from measurements taken over the internet, so why not shirts?