Yes, but there was a limit of 3 blueprints. I bought all three and wish I could have gotten more.
Muffy, you should be able to get one blueprint every week from the tourney. It isn't that hard to get 10 chests with a full fellowship. Even my nearly new player in chapter 2 is getting 1200 points in the tourney per week. I know recruiting is hard, (ugh!) but I'm sure you can get a full, active crew to get one every week. Then, with a little luck in the MA, you can get a fully evolved building in about 6 months. You may even be able to do it in less time, if the artifacts are offered in the spire. Since this is a long-term game, that's doable. I wish you a lot of luck. Just make sure the building is worth it. Some of the evolving ones are not, but then, I'm sure you already know that.