Another option instead of an overpriced, tiny manufactured coop is to buy a storage shed from a big box store like Lowe's or Home Depot.
Then add the things chickens need like roosts, nest boxes and windows for fresh air and natural light.
Best bet is to build one or contract with someone to build one for you.
You'll get what you want for much less money.
Manufactured coops are extremely over priced. Often they'll comfortably house less than half the number of birds they have number of nest boxes.