Startup Idea : Travel now, pay later

I had an idea a few years back of a travel webiste but more of a search engine similar to skyscanner or expedia. There are millions of families going on holidays with loans from banks. My idea was to start of with a webiste offering a holiday with the posibility of a loan. Basically the person would pay in installments his/her holiday. For example. A €500 holiday to be charged at diff rates 1 month at 5%, 3 months at 10% and 6 monthst at 15%. Thats how we would make our money. I am looking for developers and designers. It is not impossible to comstruct, just a bit of time investing. Everyone on the starting team will be equal partners.