Here are some cellos with broken scrolls where I used my Inner sleve method.
This is a nice cello with an unusual scroll and peg box. This cello had been broken before and just glued with two pins on each side of the scroll. The difference with this scroll was the break wasn't near the nut but closer to the "C" string, plus the back side of the scroll was super thin and it had two long existing cracks running down the back of the scroll.
This is a cello scroll repair. Not only did the scroll break off the neck but there were fractures on the checks of the scroll where you could tell the varnish had cracked. Although I could barly get the scroll to cheaks to move I didn't force them apart and just worked as much glue as possible into the fractures. Other shops wanted to do a neck graft. Here are the steps I used for my method.
Since this was a bad break, It needed two layers of formed fiber and two screwed in pins under the nut. I believe the other shop's estimate was because they didn't want to repair the scroll unless they did a neck graft.