Geordi rebuilding piecing "his baby" all back together, within realistic means since he doesn't have the largest of support crews, with some areas not completed, battle "scars" and all, and getting parts from other ships, just gives it an authentic feel. And is very much in character. I love this. In proper Trek tradition, the chief engineer treating their beloved ship-- it's thoughtfully done.
It made me think of this line from Scotty in Relics:
She was also the first ship I ever served on as chief engineer. You know, I served aboard 11 ships; freighters, cruisers, starships... but this is the only one I think of, the only one I miss.