1. Sorry to say this, but in the context of this election, your question is so very naive. One of Bernie's main issue is to stop allowing billionaires to be able to contribute as much as they can through super pacs and citizens united while individuals are not allowed to contribute more than few thousand dollars. Bernie has sworn to not take any money from the super pacs so no I would not be able to contribute huge donations to Bernie. 

 2. We have Hillary who is a slave of the billionaires as she took a whole lot of money from them, she will have to make policies which are favorable to them. And we have a crazy billionaire. Well guess what? I don't really feel like voting for either of them. I might simply write in Bernie Sanders in the ballot.