Your account of the technical details, the disaster with the oxalic acid, and your perseverance in leaving everything as good as possible without giving in to the temptation to take the easy way out is quite interesting. Although every imperfection has its charm and will become part of the history of the house, it will also be a great topic of conversation. Congratulations, I'm sure it will be a satisfying job and all the effort will have been worth it.
Thanks. It'll look beautiful in the end I'm sure and I'lll be sure to post about it!