Disney Infinity Fans

So I've been playing DI for the past week now essentially, and there are two things I'm trying to figure out.

1. Can you unlock Stark Tower for the toy box, and if so, how?

2. When it comes to sidekicks, can you only use the ones provided for you in the Escape from the Kyln game, or is there a way to make any Disney townsperson your sidekick?

I am pretty sure Stark tower is in the toy box as a purchase, I believe 2500 sparks. As for the sidekicks I think since they are a category all their own you get what is there. Also, I believe when the Merida and Stitch toy box discs arrive it will add Disney sidekicks as well. Just my thought anyway.

Yeah, the sidekicks are only going to be the Kyln and Brave characters. I tweeted JV that it would be great to open it up to any townspeople in 3.0. Then you could basically equip and lead out any character you want. I said John Blackburn could finally have the powerful Piglet he always wanted.