Many of the Dark SF and Steampunk texture sets are now available on the Kitely Marketplace. They can be bought from there and have permissions set so that they can be exported a selection of other OpenSim-compatible virtual worlds (the list of them can be seen from the shopping-cart on the Kitely Marketplace).
You’ll find the Templar Creations store on the Kitely website.
Thanks for sharing your thoughts about second life. Regards