Charity website, blog with forms and database

Hi, I need a website with a form where it can collect information, like a contact form, but with customisable fields, that collects that information in a database which could be exported as for example a Excel spreadsheet. It also needs to display some of those fields (like a blog or reviews) randomly. It also needs a conventional contact page, and to display some pictures and text randomly. And a way to donate. It needs to be simple, functional, cheap and done ASAP. It can be rough, I can finish it off. Further work may be required to maintain or upgrade the site