Oh by the Zarxiel. Does Cacho planned to release his assets soon or not? I think I feel that I like to use his Sunken Colony and Corsair models as well as his icons and wireframes of GN's SC1 Archon and Cacho's stargate.
For the Aldaris model and texture in your list, you can use either the Preserver with no glow or use the Karass textures of Thrikodias then apply it to the SC2 High Templar model. I used Thrikodias' Karass texture and applied it on the High Templar model of SC2 and it looks fitting for Aldaris.