Compare-price-Internet-site

I would like built a website for a price comparaison of airline tickets, hotels, car loans,.... If you have ideas to propose as well as the exemple of similar sites you have built, thanks to send them to me to see how interesting they're. For this project, I want the duration as well as a detailled price for work, servers if any, others.. I hope a future collaboration with you. Thanks and regards, Sam