With the new Hornets I did some digging for a older note from the SC forums how to access all ships in your hangar.
I like to see a ship before I buy it.
All you need is just one pledged ship and a basic hangar. Didn't see anything that you're not allowed to check the ship this way, and they on your HDD already so have fun
Here is the direct link to the SC forum: https://forums.robertsspaceindustries.com/discussion/49023/