This would be great.
There are two current problems with this though which need to be tackled first.
1. Buying it. You have to be next to a shop to buy anything currently. This could simply be solved by allowing anyone to buy a catalogued station anywhere, removing the need for a shop. Maybe a better solution, although it would take more to implement, would be a \'certificate\' you can buy from a shop which allows you to purchase 1 station from the catalogue.
2. Positioning. Since you can\'t move a station like you can a ship, when you purchase it, it would need a well defined location once you buy it to spawn it into. With ships, it doesn\'t make a difference, you can get in them and move them about after you\'ve bought them. If, for example, you build your station aligned with something else, an asteroid, a planet, another station, or around a shop as I did, you\'d need to accurately be able to define it\'s location. To solve that, you could place a single temporary build block which you can delete and replace as you need to. The block would correspond to the build block on the station you\'re purchasing. Once you\'re happy with the location, you can purchase the station and it will be built around the block which you\'ve placed. You could perhaps also be given an outline of the station to place it where you want, but I imagine that would be more work to implement again.
Unfortunately, adding stations to the catalogue is not a trivial addition, or I\'m sure it would probably be in the game already. We\'ll have to wait to see what comes with future updates.