Get REST ID for fields queried from Form Fields REST API

I'm trying to dynamically pull forms into our website via the REST API. Currently, I'm querying the Form Fields REST API via the Form Field Controller, but the field ID returned is the SOAP ID, and not the REST ID, so I receive errors when trying to submit a form using those IDs. Is there a way to get the proper IDs from that request? There is no way as far as I can tell to cross-reference those returned fields with the Describe API to pull the proper REST IDs.

Thanks for the help!