Hello Bob,
Great that you considering starting a 7. A new Emp Kit from Van?s might be a smoother entry into the building process for you?
The Emp Kit is not very big so shipping a new one from Van?s would an easy thing. You would be assured of receiving a complete, up to date and undamaged Kit. Might have them throw in a practice kit to get you familiar with their prints and building processes as well. Make all your mistakes on the practice kit before starting the new Emp.
Buying a second hand kit from Minnesota might be false economy by the time you get things sorted out with any damaged or missing parts replaced from the factory anyway? You might talk over the pros/cons with Van?s Tech Support when you call.
Good luck there either way
pk