so ... to be clear, if I understand you correctly what you are talking about is having 30x your anticipated annual spending, though it's unclear whether you are factoring in inflation. That is the same as a 3.34% WR, which historically has never been depleted after 30 years.
Using such a strategy would be considered extremely safe, providing a good chunk of that money is invested to ensure you don't loose out to inflation.
Where do you intend to keep your money (as in: how much will be in savings accounts, bonds, stocks, etc)?