Indeed, Eximius has mirrored mapping and the textures were poorly alligned with model, I was retexturing it long time ago, went for FC Sovereign bright grey colors... unfortunately it was lost due to hard drive failure. I remember I had to allign certain parts of the map to match the model.
As for the textures, try to avoid the same mistake I did in my early retextures, namely, dark grey and thick outlines. Try to make them brighter shade of grey and much thiner, also if you're aiming for a total retexture, look at any Sovereign available (CG's, DJ's, Wiley's - those are great examples to follow) try to replicate similiar transporter pads, escape pods, sensor palettes, hull colors and patterns.
Although it's a hard model to retexture due to mapping issues, it still has potential ;)