Czech Proofreader for 16 Children’s Books

I have a set of 16 printed picture-books aimed at Czech-speaking children aged 3-5. Each story has already undergone one full native review; now I just need a meticulous final pass focused on grammar, punctuation and any lingering awkward phrasing... (Budget: €30 - €250 EUR, Jobs: Copy Editing, Copywriting, Editing, Excel, Proofreading, Publishing, Translation)