Refinance or Heloc to pay off high interest cards

We have a substantial amount of debt in the 60k range, most in credit cards with ridiculous high aprs. We are trying to improve my partners credit score to be eligible for a heloc which we got pre denied because score was slightly lower than the minimum we are working hard now paying off regularly and trying to build partners score and reapply in January. Our plan is to get a heloc and use that to pay down the debt and end up paying back the heloc. Does this sound like a valid idea? We have over 180k in equity. Thanks