Sri,
I think you are on the right track. WC Vendors is not fully integrated with WooCommerce Booking yet- but when we are, I do think that you will be able to complete the project for your client with perhaps just some additional work for the deposits. Until we can get Bookings integrated, though, and take a look at what more you need, I am not sure just how much you’ll have to do for the deposits.
Glad you like the new site design. 🙂