This hive sounds like a nightmare. No wonder they wanted YOU to check it out!
I don’t think I would risk $20 ($30 with shipping) on a new queen at this late hour. Winter is coming your way SOON. If the hive doesn’t have enough winter bees already, you’re too late.
You might have a queen in hive that has stopped laying. If so you wasted $30 sticking a new queen in.
If you have laying workers, you’ve wasted $30 if you buy a new queen.
If the hive is honey bound, there is no place for a queen to lay.
If the hive is only 1 deep of bees, what are the odds of a 1 deep surviving a PA winter?
If the hives succumbs to the cold, you’re out $30 now and $80 more in the spring for a new package.
I would save my money and hope for the best. You may have a queen in there.
I wonder if there are any derivatives (options) offered on bees