Commission-Only Web Design Sales

I run a small but busy web-design studio and want to scale without adding a salaried sales team. You would plug straight into that need, hunting for new clients, handling every step from first touch to signed proposal and cleared payment, and earning a flat 25 % of whatever you close... (Budget: €8 - €30 EUR, Jobs: Cold Calling, CRM, Graphic Design, HTML, Lead Generation, PHP, Sales, Website Design)