I agree with jclarksnakes. You're financially all set to retire.
I ran your scenario on the Schwab retirement calculator as a reality check, assumed you might want to invest conservatively, and have a lifespan of 89 years.
Once your SS kicks in, you could actually spend more than your current projected expense of $90k pretax (adjusted for inflation). If you don't spend more, you'll probably wind up with approx. $400k (in addition to other assets), or have $400k to live on, if you live to see your 90th birthday.
Good for you. Congratulations.