Hello,
I looked at your current website and the new theme you want to switch to. I can complete the work on my own servers this way we don't touch the live one. I'm a coding expert and a wordpress master, so the sky is the limit with what we can do with the website. Also, when you know coding, the job gets done quicker as I know what I'm doing.
If you would like to discuss the project in more details please open a chat !
Thank you