Hello. You want to create the WISECP module using restful api of open game panel and make the service for open game panel.
I have read the job description carefully.
For your project, I should create the panel in the WISECP.
WIth my WISECP experience, I can provide high quality result.
And then create the file to call restful api of open game panel.
This file should be php, js file which call restful apis.
Finally, I should make this file as index file for hosting.
I'd like to discuss more about your idea, deadline and quotes.
Regards.