Complete WordPress Site Duplication

I have a live WordPress installation. Your task is to take another WordPress site and reproduce it in full on my server—design, layout, pages, menus, widgets, settings, and standard plugins—without touching my existing content.
https://demo2.visionconnector.com/ (This is what I need cloned within 2 days max)

That means:
• Every visual and functional element from the source site must appear on my domain.
• All current articles, images, and database entries already on my site must remain exactly as they are.
• No custom plugins or proprietary themes need to be ported; if the original relies on them we will replace the functionality using widely-available, regularly-updated plugins or native WordPress options.

I will give you:
• Admin access to my WordPress dashboard.
• The URL of the site to be cloned.

I expect:
• A staging or maintenance setup while you work so visitors see no disruption.
• The finished clone running smoothly, with links tested, forms working, and page speed comparable to the original.
• A brief hand-over note outlining what you changed, which standard plugins you installed, and where to find key settings.

If you’ve handled migrations, duplications, or WP-CLI/All-in-One WP Migration workflows before, this should be straightforward. Let me know your estimated timeframe and any access you need beyond what’s listed above so we can get started quickly.