Like Lucas said, you can't expect someone to go and back up a project when people don't even know what you are capable of. Let alone how good your work is.
You can pick up a decent microphone, blue snowball for example, for around $60 on Amazon. Go to brinklink. I bought 8 M-Tron minifigures for $20. I'm pretty sure it doesn't cost $1,100 to buy a couple of minifigures and some LEGO bricks. You could technically pick this whole thing up with pocket change, given you have a job. If you are going to ask for a big budget you better give a pretty good reason as to why you're asking so much. In the meantime just stick to Google Adsense allowances.
You might want to, not only re-think this, but come up with a better reason as to why people should donate to your project, give some better prizes away and show a demo of what people can expect in the future.
A Life? Cool! Where can I download one of those from?