Full ready made template for brand identity using affinity

I am not looking for a designer to create a brand identity. Instead, I need a ready-made, fully integrated master template in Affinity format (Designer or Publisher) to use as a reference and core framework for all my future clients... (Budget: $10 - $30 USD, Jobs: Affinity Designer, Branding, Brochure Design, Corporate Identity, Graphic Design, Packaging Design, Print Design, Stationery Design)