Eventually you have to let go of precision when planning a future involving stock market returns. Your first question hinges on how much stock market returns have outpaced inflation + 4%, which isn't knowable in advance. Over the medium to long term, probably - but not certainly, as a recent decade fell short of that amount.
Is the possibility of full time nursing care included in your plans? Although you're trying to spend it all during your lifetime, the uncertainty of medical and related expenses could do that for you - or might not. The 4% "rule" is more of a guideline, and if you make it too precise you could be overconfident in future market returns.