Health insurance is included [in $40K annual expenses], current rate is $855/yr. for my HDHP.
I need to restate income - the $82.5k is gross. It should reflect as net of taxes and insurances (health/vision/dental will be deducted from pension and paid net).
Have you double accounted for health insurance in both annual expenses and as a reduction in your pension here? It only helps if you have. Which is good, because I'm about to go full on devil's advocate on you ;-)
If you are running FIRECalc to 95% dollars based success, are you consistently planning with this level of assurance across the board? For example, if there is a 5% chance you may have to max out your HDHP deductible annually, does the plan survive that extra expense? Same with longevity, though the 50 years you've planned for takes you to roughly the 95th percentile and adding some years to the plan beyond 50 doesn't change things much once you are planning that many years already. And if you have 95% assurance on dollars and 95% assurance on longevity and 95% assurance on not spending your high deductible until Medicare kicks in at 65, are you still 95% sure this all works together? Or are you only 95%*95%*95% ~ 86% sure overall now? Comfortable with that risk? Just something to think about.
Your current healthcare cost is real close to a wash with Part B+D+Medigap G at 65, plus you lose the high deductible risk at 65, so that seems good to me. I can't think of anything to worry too much about there.
If the last 3-5 years of your life are spent in long term care at $150K/year in today's dollars, what does that look like in FIRECalc (you can force a minimum portfolio value at all times in the FIRECalc investigate tab)?
The workforce paying into social security is shrinking compared to the population receiving it. This isn't getting better anytime soon. If Social Security goes insolvent in 2032 and stays that way, it may only pay out 76% (or less) of that 50% spousal benefit. I grant you politicians may not let that happen to win elections, but if it does happen, how does that look in FIRECalc?
I'm not trying to rain on your parade so much as suggest things to help conservatively calibrate your spending early on until sequence of return risk and other risks have some time to pass you by, or happen to you. Either way, it will be some time before you know. And better to have not over-spent in your early years so that you can still handle "stuff happens" if it does happen.
I think you have a workable plan overall. You just need to be careful and disciplined with spending. I agree with others to finish out the SS credits to bank that. What if spousal support rules change to fix social security insolvency? Plus, by the time you stress test some more, you may want the extra earnings that generates anyway for some more fun money or risk reduction.