Publisher File to Inkscape (or similar) Conversion

I need a clean, one-to-one conversion of an existing 36 page Microsoft Publisher (.pub) file into a fully editable Inkscape document, so I can maintain the project using only free, open-source software... (Budget: €30 - €250 EUR, Jobs: Adobe Illustrator, Adobe InDesign, Graphic Design, Illustrator, Image Processing, Inkscape, PDF, Photoshop, SVG, Vector Design)