I know it's a sarcastic question, but I would really add on for removal of the poorly done work and a complete re-inspect, plus add the time you spent on the first estimate.
Then I would snicker quietly in my truck on the way there.
This is one of those times when, thankfully, idiots get their return for going cheap - it ends up costing them to get something done twice when they should have just went with the right way in the first place. They spend a dollar trying to save a dime.
Ha!
