Hmmm...that IS puzzling! I KNOW my old planner told me it could happen. That said, my old planner no longer works for DFTW...so maybe he was losing it! I don't know.
I'm sorry. I promise that I didn't purposely try to mislead you. I'm just going off of what my planner told me almost a year ago as we were trying to come up for surprises for my DF (my email signature line is "May the Force be with you," so he misinterpreted my love for "Star Wars" as something DF would also appreciate). Your planner would certainly know better!
It's also possible that things may have changed between when my planner told me I could have him, and now. I think there's a big push to move all the "Star Wars" stuff to HS....so that's a big possibility.
I'm sorry!

So yeah...the 501st might be your best option, then. I don't even know how to get a hold of them, but I know a lady on FB who DID have Darth Vader and stormtroopers at her wedding. I know that it wasn't in HS or in a ballroom for her reception...but I'm not quite sure where. It was still on property though. Like, I think in the Swan & Dolphin area. I THINK she used 501st people. I can talk to her if you'd like, and see if she has contact info.
Tiffiny