Automated Long-Form Video Generation System, Tool or Web

I need a custom automated long-form video generation system inspired by https://vidrush.ai/#enterprise. I do not need an exact copy or a public SaaS platform. This system will be built for my personal use only, not even fancy style, just effectively workable... (Budget: $1500 - $3000 USD, Jobs: AI Automation, AI Content Creation, AI Image Generation, AI Text-to-speech, AI Video Editing, AI Voiceover, JavaScript, PHP, Video Editing, Video Production)