Go over every requirement and decision and defer or remove any that an MVP won’t require. For example, an MVP car (which took more than a couple of weeks to build) needs an engine and wheels. It does not need doors, a windscreen, or bike rack.
If your MVP has a good foundation and communicates the business proposition well people interested in it can fill in the blanks and imagine the next iteration.
When people will give you money in hopes you will solve their problem, you will have a problem worth solving. Not an imaginary problem. Not an excuse to avoid the rejection that comes with asking people for money.
Good luck.