I helped a friend run one semi succesful kickstarter before and I'd really encourage you to focus less on stuff like 'scroll animations' and more on the story of what you're building and why. In addition given your tight timeline coupled with the fact that web design and development is new to you I'd really focus on not over complicating it.
Find an immensley simple template (maybe on webflow, or wix I believe they both have email capture style tools) and start writing!
Best of luck and would love to see what you land on