Restore Three cPanel Websites & Emails from one cpanel backup

I’ve got a single full cPanel backup that contains three domain accounts—WordPress install and custom-built PHP site. The backup also includes the associated MySQL databases and each domain’s email boxes. I need everything put back exactly as it was: files, databases, email accounts, DNS records, SSL if present, plus any cron jobs that may have been part of the export.

The priority is the website files, but a clean, error-free restoration of the databases and mailboxes is part of the same job. I only care that the sites come back online without broken links, missing media, or PHP errors, and that mail flows again.

Deliverables
• All three websites loading correctly from their domains
• Databases imported and connected (phpMyAdmin shows no errors)
• Email accounts recreated with previous messages accessible in Webmail/IMAP
• Basic smoke-test confirming WordPress admin areas and the PHP site’s custom backend are functioning

I have access to the new cpanel account only and also the old backup that i want to restore