Wordpress Website Project

I want changes in my current website Add :User registration and user panel. Make categories base fare calculation .any vehicle added selected Categories Form will charge given price . STANDARD> saloon-Estate-6 seater-8 seater Executive > saloon-Estate-6 seater-8 seater Luxury> Ferrari - royal Royce-abc-abc Fare calculation for each category (Standard and Executive). £ Fixed amount for first 10 mile ,after 10 mile £/mile for next 20 mile after 30 mile(10+20) £/Mile for after 30 mile journey . For example 35 mile journey (Fixed for -10mile £40+20mile *£2+ 15mile*£1.5= £102.5 Need a back panel field where i can add and change prices and fixed amount and mile price per mile . ( as you can see attached Price list criteria file) Where i can add and delete categories if i need and make changes by myself. But when select Luxury car no price will come just show Request for quote no order book just send mail to admin instead of book order . Change booking form layout First Booking page layout (Field) -Pickup Address -Drop off Address -Date And time -Journey type (Return or Single Way)If return then double or half price charge (also i set from admin panel ) -Click Book Second Booking Page Layout At the top A Service type drop down menu show which display all vehicle categories selected show included fleet in bottom of button Horizontally ( as you can see attached pictures)can change the category and user can see other service type price list and fleets. Bottom as currently theme are showing booking details form and Total distance and button googlemap . Change Google map show instead of click button just show by itself no need of click button . 1 more change make Email field for email style like name@[login to view URL] currently you can enter any thing and it accept it same with Phone number field. Website link URL = [login to view URL]