Interactive PDF Workbook Upgrade

I have a 106-page fitness and weight-loss eBook—The Beginner’s Better Body Blueprint—that is already fully laid out and visually polished. All I need now is for the workbook sections inside that PDF to become truly interactive while leaving every font, colour, image and layout element untouched... (Budget: £20 - £250 GBP, Jobs: Adobe Acrobat, Adobe InDesign, Graphic Design, Mobile App Development, PDF, User Experience Research, User Interface / IA, Word)