Is it not available anymore? If you google the p/n, you'll see a variety of sources that have the panel for sale. You could also search the Dansk p/n 1682001000. If you search that p/n in the Pelican catalog, it shows here as a Porsche genuine part and available in 1.5 weeks, because it comes through the Porsche network?:
https://www.pelicanparts.com/More_Info/1682001000DSK.htm?pn=1682001000-DSK
I have in transit currently via DHL Express, the roof panel coming from Belgium to Los Angeles, at a total cost including shipping just under $2000 USD, basically the same price you'd pay in Europe without shipping, because Europeans have to pay an additional 310 Euros in VAT tax, whereas US customers don't, so if no US supplier has it, not a big deal.