As for Luxire, what appeals to me about Proper Cloth is this: http://propercloth.com/collar-styles/soft-ivy-button-down-collar
$85 for their light blue Oxford cloth. Seems like a slam dunk.
Thanks for the tip, however, as there are some other shirt styles I'd like to buy and I want to look at all the prices.
Just keep in mind that Luxire can replicate any collar you show them, or you can specify details such as point length, band height, tie space, etc. They can do fused or unfused, lined or unlined, soft, stiff, whatever you want. There really are no limits and they follow instructions to a T. You don't have to choose from their standard collars. But perhaps you already knew that.
+1. Their odd sizing is why I've yet to purchase a Kamakura shirt. Otherwise, they seem great.