After launch, you will have a better idea about how to spend the money...or to put it another way, after launch hype fades, how you follow up really matters. The bigger the launch the more it matters and the more resources it takes. Good luck.
The question suggests the money might be a distraction in the form of shopping. "Marketing" is not a concrete plan. Easy brainstorming might be displacing the hard concrete things that need to be done and the things that can be improved between now and launch in two weeks. Good luck.
