@womble7 Dude why are you trying to reinvent the wheel. The 4% rule includes inflation adjustments and investment returns(balanced portfolio).
Seems like you do not trust the financial markets if that is the case maybe you should do research about becoming landlord.
Rental yields can be around 3-4% if you invest in small flats. Also most of the time they perfectly track inflation.
You can keep buying them one at a time and renting them out until you reach your magic income one day and then you can retire.
Most of your net worth will be in real estate so be careful about location. Do not put all in one city because if something like a serious water crisis happens those investments will be worth 50% of their value due lack of renters.