Do you like the investor? Would you want him to be involved even if you didn't need the money? If so, do your best negotiating and take the money. If not, ei

Do you like the investor? Would you want him to be involved even if you didn't need the money? If so, do your best negotiating and take the money. If not, either do consulting work or get jobs and work nights and weekends. Giving significant equity to someone you don't want to work with will most likely ruin the company.