KDP Paperback Formatting & Transfer

My existing paperback is already selling on Amazon, but the interior still needs to meet KDP’s print-on-demand standards and I now want the title housed under a brand-new KDP account that I alone will manage... (Budget: $10 - $30 USD, Jobs: Account Management, Adobe InDesign, Amazon Kindle, Data Entry, Editing, Graphic Design, Print Design, Project Management, Proofreading, Publishing)