Big thank you to TheBloke for uploading the HF version above. Unfortunately, his GPTQ quant doesn't run on 0cc4m's fork of KAI/GPTQ so I am uploading one that does.
Command used to quantize: python llama.py c:\stable-vicuna-13B-HF c4 --wbits 4 --true-sequential --groupsize 128 --save_safetensors 4bit-128g.safetensors
This model works best with the following prompting. Also, it really does not like to stop on its own and will likely keep going on forever if you let it.