Can i replicate wordpress website with minimal cost

Dear friends ,

I am a researcher in an SEO company and I have been given a task to replicate a competitor’s website with minimal cost.

https://goldrateinqatar.com

As per my search, the website is made in WordPress and it uses the Kadence theme. It has many customized ReactJS and php plugins. It has also a separate mobile view which is only visible on mobile .

Can I replace this website with Ghost theme and platform easily?

I think WordPress would be the better option for a website like that, Ghost is purely for publishing. Charting, calculators, and converters will all have to be developed separately and embedded via iframes or javascript.