That is awesome about your son being a member of the Glactic Accademy. We have alot of Galactic Academy Kids that troop with us, they are great... most of them are children of 501st people but still fun stuff!
Have your husband contact me, message me. I have the feeling he bought something similar to the base kits we have to use then we alter them to fit us. I can help point him in the right direction if that is the case.
In addition I am about to start posting pictures of my progress with all my costumes now that the holidays are over and I am going to start working on them again.
Keep check out this page (it's public so no need to even have a FB account, and if he does or you do all you need to do is follow and you'll get updates automatically, there is no friending necessary!)
https://www.facebook.com/EnyoCosplay
MARCHING at SWW 2015: We would love to say the stormtroopers will be ready to march but without even having the body armor pieces yet I can't say. We are also working on Imperial Officers in junction, so bare minimum we will march in those. Darth Revan was also allowed to march last year, so my BF might march in that costume as well, depending. Unfortunately Mara Jade is not allowed to march because of her relationship with Luke Skywalker later in the books, when she turns from bad to good. Disney doesn't want any one misconstruing that she is going to turn up in the new movies. Darth Revan is far enough removed from the characters in the movies that they allow him, as least did last year, we will not get a final list of who can and can't until less than 2 months from SWW.