This looks really good! I would love to see similar quality textures made for the MK4 spaceplane mod, as an update or similar. Thank you for your work Nertea.
I´m having the same issue. I have contacted support, don´t know if it´ll reach anybody but its worth a try. I hope this is a temporary issue and not us, who bought the game on the official site, losing access to the downloads for ever.