Need to do some changes on Car rental Woocommerce WordPress website

Hi, I am looking for help with some changes on my Car rental WordPress website. I need some changes and modifications in the existing WordPress Woocommerce-based Car rental website developed using the ireca theme. There will show results when selecting dates and times of car booking, when clicking a car or button it should directly go to the checkout page without going to Single product page and cart page. There are additional resources for Cars like baby seats, Car Seats, Navigation, and Additional drivers in the car single page. so Add this section to the Car checkout page. When selecting an extra resource or changing the quantity of that, it should show the changing amount for that and the total amount. Only one car can able add to the checkout page at a time. There needs to add a remove button for products on the checkout page. When adding a new product it should replace the existing product in the checkout cart.

Here is My website – https://ancarhire.net/

This is the sample site I expect for the flow of car booking and Checkout page. – https://easirent.com