The story is great. The plot will survive untouched and most characters are dead on. In fact, of the novels I shared with my mother, she liked this one the best because it was more of a mystery than a science fiction story.
But, I've written a lot since this one, and I've improved. Every scene will have to be re-written. Some sub-plots have to be re-paced. I may even have to tidy up the ending. Looking at the story from this distance in time gives me a better editorial perspective. I love the story, but the text needs work in many ways. There's a lot of work to be done–much more than dropping the text into InDesign and laying it out.
But that will be fun. I bet I can make a good story great.