The only thing i can think of to do that is to build a quad batcher were each quad has it’s own set of uv coordinates the hardest part of doing that would be to get the edges to join up properly.
If you could assign uv coordinates to indices that would be easy why they dont allow for that on cards i dunno but as it is that’s not a easy task further you’re quads are going to need perspective alignment.
Otherwise you will get artifacts like this. A model would likely be even more difficult or impossible to do with what you are describing.
https://i936.photobucket.com/albums/ad207/xlightwavex/miscellaneous/wierdbug_zps2vgv41ox.png