I am going to go with the same answer I had on the other annuity thread for someone in this boat. According to Fidelity she can use 200K to get an annuity of $18,456 annually.
1) Convert to annuity and take $12,000 annually for house
2) Increase spend by 3 percent each year
3) Invest difference $6,456 in year one 100% in VTI
4) Additions to VTI slowly decline over time to age 90 when the portfolio which should be at $135,000 would need withdrawals.
5) if instead a 4% step up the portfolio would be $105,000 at age 90 and last to age 100. Stock Portfolio withdrawals with 4% step up would not be needed until age 87 so I think she would be good, it is conservative and gives stock exposure with no income hit and a secure inflation protection provider, not fool proof but pretty darn good.
6) at 5% annual increase the portfolio would provide income to match an annual increase of 5% to age 95, then would drop 40% to the 18K annual annuity payout . Portfolio maxes out at age 90 at 90K.
7) This is simple to set up with a broker to distribute the monthly cash and invest monthly savings in VTI.