At the moment, it's probably impossible to set a Townie DecaDynasty in Appaloosa Plains as there are only 7 buildings that can be bought. Even if you add the pet store (which not everyone has) and the film studio, which requires LN, the most you can get is 9. Since you lose ownership of the buildings each time you move, I'm wondering if it would be possible for a subsequent generation to buy one of the doubled-up buildings? For example, Gen 1 could buy the book and bath building as a bookstore and Gen 5 could buy it as a spa.