Hello!
I like the graphics on your website. The animation would look really cool.
Are you looking for a web banner in gif or html5 format? Or are you looking for a video or some other format?
I understand that you have tight budget, but that means, the animation would be simple in it's nature. If you would like to make it more expressive, you would have to look for bids, that are around 50$ and more.
Hope to hear from you!
Thanks!