It would be good if the work order photos could be printed out on this extra charges print layout so that the builder can see proof of the work.
It does not look good You don't need to list the price of the contract you just need to list the job extra a simple single row description of the line item Take out the extra columns of added extra pay in contract pricing to make room for this.
I'll try to post this idea the best I can in the ideas portal.