Hello,
There are two solutions building your website:
1) From scratch
2) Using a script
If you have very limited budget and want to test waters first, then using a PHP script might work. Script will provide you with many advantages:
All the functionality is already there. And it's only the matter of deciding which functionality you'd like to delete/ modify. Also, the design, look and feel can be changed. The modules can be replaced or deleted.
If you're looking to build a proper custom solution, then we're recommend building it in CakePHP because it'll expedite the process. CakePHP is our platform since 2005, we built over 100 projects on it following framework conventions and best practices.
Check our recent projects here [The administrator removed this message for encouraging communication outside Freelancer.com, which breaches our Terms and Conditions - Section 13: Communication With Other Users.]
We're a great fit for your project because:
1) We've worked with a ton of payment gateways, including Paypal, PayMate, Stripe, Braintree and obviously any crowdfundung web app requires proper payment setup.
2) Besides having development skills we have lots of business insights about similar projects.
Let's collaborate!
Anna