Wordpress Tour Booking Manager For Woocommerce Cutomization

Hello I am devlopeing a tour and travels website with wordpress , i already have a wonderful plugin name "Tour Booking Manager For Woocommerce" but in this i need few small changes according to my business and also i need to create a taxi boking plugin for my website , which can measure distance betweek pickup location to drop loaction by google map api and can show the price of booking. these are two task for my website.