Can HEP C be cured permanently? YES
I thing the odds are that eradicating the virus would afford you a healthier and longer life.
My advice is to consult with a knowledgeable physician about your treatment options and make and informed decision.
Yes hep c is now curable for most patients.
Generally if you don't have liver damage hep c likely would not have shortened your life. With cure you will live as long as you were already going to live.
If you do have mild liver damage with cure your liver injury will improve and likely extending your life thus reducing the odds you would die early from liver disease.