Commission-only: sell ad space in my free racing game

Commission-only sales rep wanted to sell ad space inside my free one-thumb racing game, Drift Daily (free in the browser at driftdaily.duallink.link, new track every day). Ad slots: the start gantry, roadside boards, flags and the "today's track presented by" sponsor slot... (Budget: $10 - $30 USD, Jobs: Advertising, Brand Management, Brand Marketing, Business Development, Digital Marketing, Lead Generation, Marketing, Sales)