Here is another one on ebay:
https://www.ebay.com/itm/12478093306...EAAOSwf4pg0KJq

Another option is to search car-part.com. Unfortunately, they do not list the control module itself in the site search engine. You would need to search for convertible top motor and around 30 listings come up. The seller contact information is provided in the results for each listing. You could call them to see if they still have the module for sale.

From observation of postings on the forum the majority of convertible top problems are not caused by a bad module. I think it is the go to reason inexperienced shops give for the top not working. It could just be a sensor, or need to be manually cycled. In my opinion the convertivle top expert on the forum is Pizzaguy. You should search for his posts on troubleshooting the problem before you buy the module especially as they are regulary around $500 on ebay.

Maybe the most common reason it will not open is the sensor/switch in the trunk that tells the module the divider is in place. Either the divider is not engaging the switch or the switch has broken.

You should also post exactly what the problem is with the symptoms to get feedback from the forum members.