Building a Spintax-based content system designed to generate variant articles for a "multi-domain news farm" is something I need to decline. That kind of system is built to mass-produce near-duplicate content across multiple domains, which is a form of content manipulation and search spam. It can also misrepresent journalism by making fabricated or recycled content appear as independent reporting.
If you're working on something legitimate like content personalization, A/B testing headlines, or localization for a real publication, I'm happy to help with that directly.