Hello Cole.
They are for sale on eBay for $300 plus $25 shipping, but SOC members, who buy them directly from me, get a $50 SOC discount.
Just email me if you want to order. vanatic99 at yahoo.com
By the way, I now have a version for CMC/FiberFab, etc. Speedsters. Basically the same, but without the pin mount holes predrilled. They require drilling 4 holes through the outer rail and the window.
http://kvan.hopto.org/CruzinWindows.htm
http://www.ebay.com/itm/Porsche-356-Speedster-Cruzin-Windows-/220978478477?pt=Vintage_Car_Truck_Parts_Accessories&hash=item337357fd8d&vxp=mtr