WP and WooCommerce Tune-Up, and possible restore of missing images

This should be a easy job for an experienced Wordpress Woocommerce expert as the job is primarily tweaking and cleaning up an existing site.

I have already spun up a sandbox copy of my WooCommerce site on Hostinger using Duplicator as it has been restored.

The migration completed, I can log in and browse, but some page images may not have made it across because the backup was incomplete.

The error I received when restoring using the duplicator WP backup plugin, to a sandbox site (on hostinger our preferred host) was:

'We've restored your website, however some images are missing, due to an incomplete backup'.

Here is what I need right now:
• Manually re-upload the missing images. I still have access to every image—either in the original live site (lower-res versions) or inside the older backup I can hand over to you—so nothing needs to be recreated from scratch.
• Bring every core, theme and plug-in up to date, test for conflicts, and make sure the storefront and checkout still run smoothly afterward.
• Swap in new business email addresses where the old ones appear on-site or in system notifications.
• Run a quick round of functionality and user-acceptance testing with me so we know the sandbox is bulletproof before I point DNS to it.

Also required is to remove any references and logos from the site in relation to the old hosting company, who but appear to have a change of management or gone out of business as they do not respond to messages and their emails are bouncing.

Further it will be necessary to resubscribe to a couple of plug ins, I can assist with this as it requires credit card details for annual subscription, these were previously operating without issue.

Once this refresh is complete, I want the admin area set up so I can add new products without wrestling the theme; please leave clear notes or a quick Loom video if a custom workflow is involved.

If everything goes well and you’re easy to work with, there will be light, ongoing site-care tasks in the future—things like adding products or tweaking promotions when I’m too busy.

You’ll be working with: WordPress, WooCommerce, Duplicator, Hostinger’s hPanel, standard page-builder tools and a handful of common plug-ins.

Access to the sandbox, backups and the original live site will be provided as soon as we start.

Let’s get the images back in place, knock out the updates, and make the cut-over seamless.

We will take care of DNS and company email set up as part of hostinger and DNS cutover, so some email addresses might need to be updated post DNS cutover.

Prior to this we can use gmail email addresses for website contact forms etc.