No guarantees, but I keep hearing how awesome FFG's customer service is. You may want to call them and honestly explain the situation. Heck, tell them you'd like to purchase a replacement stand. Given your situation, they might just do something really cool like send you a stand for free.
Worst case scenario, they say "No" and you've wasted 10-15 minutes of your life. Best case scenario, they send you some replacement parts and realize that extra stands should be available for purchase or included in future printings of the core set/expansions.
Worst case scenario, they say "No" and you've wasted 10-15 minutes of your life. Best case scenario, they send you some replacement parts and realize that extra stands should be available for purchase or included in future printings of the core set/expansions.