So,Scott that would bring up the obvious which would be to bring all 3 types of documentation if possible. AS it turns out I have all 3 for a project I am considering. For Bob that presents a gamble. If he builds for competition, he must base it on a model alone and although he will have built a project I assume he enjoys, he will have invested much time and effort on just 1 form of documentation and the most dubious.
Hey Bob perhaps you could contact the model manufacturer and ask if they have any drawings. Is your kit complete with instructions? Maybe there are drawings in the instructions?