Hi Delaney,
I am sorry about exotic boards not carrying Dupraz. I was the one who initatied this. However my headquarters after thinking it through decided that having an online retailer wouldn't be in their best interest, as Dupraz later on plans to create a special platform on its website especially for North American customers with prices in dollars instead of euros.
As to your question on the topsheets, they are tied to the stiffness. For example, the D1 ++ only comes in the Spirit or Wax topsheet. you should be able to get the boards anywhere between one to three weeks.
Gabriel