Calculation form just like iselet.com.au but for insurance

Hello all, I have an urgent project what needs to finish in 24 hours: A form attached to Virtuemart whats pops open in a new window: You can do the following: Choose between 3 insurances Choose insured value: 5.000 10.000 25.000 50.000 100.000 150.000 Choose for a second person when needed. then a calculation page: Price per month (price is 0,15 per 1000 insured value, for the second person it is 0,10 per 1000 insured value) and do you want to make antoher calculation Next page personal information. This al needs to synchronisize with Virtuemart. Without using virtuemart in the frontend. And we need everyhere back buttons. Project needs to be finished in 24 hours!