I don’t know any good place to shop or artists to ask for a quote, I’ll just point to a nice example (UDK only though) of what I believe are looking for:
Tor Frick - Lab
The entire scene is using only two 256x512 textures.
This + a reflection mask + a fake reflection or environment probes…
But pieces of pre made building, like wall with door, wall with window, corner sharp,
Corner round, floor 1, etc that can then be used by a procedural generator…
If this is as far as Tor Frick pushed the concept, it makes me feel much better about the kit I already have, some needs work,
But I think we can rework what we have rather then start over.
In 2.77 you can now grab the cube maps from a environment map I am told
I can get texture bindID now, and pass new probes as the player / camera moves, but now I need to make sure I can interpolate as you move each frame without killing the performance.
(Pil and PyopenGL)