I agree that seller should not care with animations either. You could make a video showing the character you got set up playing in a level with whatever else animations you got (even the ones free at MP). The product would be a template showing how to do it. I know it is hard to do than say it, but you need to be very clear what is the main goal for your package and in my opinion is not to provide animations for the developer. If the sword is causing problems on the audience to see that it is just a template, rip it off and put a glove in its place. Just my few cents.