PDF to High-Quality EPUB Conversion

Hi! I have a fiction/text-only book in PDF format that I need converted into a high-quality, reflowable EPUB. The final file will be published via Publit.se, which means it must pass the official ePubCheck validation with zero errors... (Budget: €30 - €250 EUR, Jobs: Content Development, Content Management System (CMS), Data Entry, Document Checking, eBook Design, eBooks, Editing, PDF, Proofreading, Word)