I agree. Doing this carefully and methodically, it will take you a good portion of a day. It's better to step back, review the work so far, and make sure the work to do is still in order.
I could have got it done a lot faster but I saw no sense in that. I did not and do not want to take it apart to fix errors. You have a tendency to introduce more that way.
A phrase my Dad would harass

me with:
Any job
Big or small
Do it right
Or not at all.