I would retire on $100k per year.
But you've indicated a wish to continue working for those crazy high salaries and to grow your nest egg even bigger. That's fine, but understand that you are selling years of your lives in your early 30s, at the youngest, most energetic, and healthiest you'll ever be, in exchange for more luxury goods and/or the benefits of living in a HCOL area. It's not the choice I would make, but it's OK to have different priorities in life.
Your question is what to do with the $215k proceeds from the house sale. I presume you already have a new place to live and don't need to redeploy this cash for shelter.
Luckily, you have arrived at this point in a time when you can earn a solid real return on bonds while you DCA into stocks. So given your objectives and preference not to just drop the lump sum into the market, I would do something similar to what you're doing. I'd first max out any IRA I could contribute toward, and then buy BIL (4.76% yield, almost no duration risk, 1-3mo treasuries). Then I'd move 10-15% of the house proceeds per month from BIL into VTI.
Now if you've recently signed up for a mortgage in the 6.5% to 7% range, I'd be very, very tempted to just dump all the house proceeds into reducing that debt, "earning" a much higher risk-free rate than the market can provide.