Found your post by accident, thanks for the credit under the picture.
You are 100% right, one hole is in most cases simply not practical. For customers who want it it scream "custom" I do advice 2-3 holes since even when you wear one strap your wrist will change during the day, month etc. With this one the story is simple. It's mine :), I was checking some color themes. So adding one hole or maiing another strap is quite easy.
For the orders side. I work mainly on custom leather orders (not just straps). I have hardly anything in stock and the prices depend on the strap type, leather, finish etc. The blog in more of a archive of the work done than a shop. This might change in the future. FYI price range is from 70$-200$ + I thing it's a good suggestion to add that somewhere on the page. And yes the delivery times....well working on it ;)