build website for a charitable trust with booking functionality

Description

Hello, I am looking for a website developer to recreate a website and add a booking functionality to it. I have a lot of details that I can share with you but for now I am just trying to identify a developer with good website and booking functionality skills as well as a very good level of English language.
The website is no longer online however I have got screenshots of exactly how it looked the last time it was online. The developer that originally made this site had it Hosted on his own test platform rather than on my hosting environment (on the Siteground platform).
This version of the website was built using the "Travel Tour version 4.1.7" WordPress theme. I am not sure if this particular theme (or it's latest version, 5?) is a good fit for what I want to achieve. This theme seems more suited to affiliate marketing websites?
I have read that the divi theme is particularly popular among developers so I'm open to changing the WordPress theme - however if this is unnecessary then I was generally happy with the look and feel of the website it was just the functionality of the booking system that was missing and the slight lack of understanding of the English language throughout the site and particularly the lack of response to the feedback notes that I gave The previous developer. I can share the requirements and the feedback that I gave to the old developer with you if this is a job you are interested in? I can provide the previous developer with all the text and images that I wanted on each of the pages , he managed to do this and added a few stock photographs, however he did repeat a lot of the text on a few pages where it wasn't meant to be despite how many times I informed him of this in my feedback . (A good understanding of English is required to avoid making these sort of simple mistakes ). The overall design of the retreat has since been rebuilt so I have new images that would need to be used which I can obviously share with you.
I can give you access to all the text , images, video and social media accounts that were set up but it is probably better if I just send you the details of how I would like the booking page to operate because this seems to have been the main sticking point with the previous developer. So if you think you can achieve this and actually understand it then I will share the rest of the details with you.
If you ask me as many questions as you can about the booking functionality that would be useful to prevent any misunderstanding and will save us both some time.
I have attached a Word document explaining the bookings page as much as possible and I have some images of how it actually looked but it didn't function so this will help you make a better decision.
At the moment all reservations should be put on a waiting list that begins in February 2025 this date is very optimistic as the site is not available yet therefore no payments should be taken however once the site is ready I would like the ability to ensure that payments are made. But obviously I would have to make the bookings live with the approval of the customers.
The 'about us' and 'contact us' pages should be combined into one page as it is not necessary for them to take up two pages.
Kind regards, Ryan Murray