Discourse integration migrating from WordPress

Has anyone migrated a WordPress blog to Ghost that also had an existing Discourse forum?

The problem I am having is that the WordPress Discourse plugin uses the Discourse REST API while Ghost currently only supports the Discourse embedded iframe. It seems that the more robust REST API handles topic creation differently than the embed feature, which results in existing articles not loading the proper Discourse topic. This is a very large blog with average hundreds of comments per article and hundreds of articles as well, so manually migrating topics is not really an option.

Does anyone know how to get this working?