With a 2.5% WR you are good to go and your sequence of returns risk is low. I like 65/35 at your age and that is close to our target AA.
Since you are in a position to stop working now, you could also just downshift if you prefer. I worked part-time for a number of years before retiring and it was great. Just be cautious about getting sucked in for more than you are being paid for. In my case, I couldn't control my schedule to have contiguous time off so I decided to hang it up.
For single people, SS is actuarially neutral, so in theory it shouldn't matter when you take it. Check out SS Analyze
and see what they recommend.
What I did when I retired is took 5% from my fixed income allocation and put it into a 1% online checking account... I then arranged an automatic monthly transfer from that online checking account to the local bank account that we us to pay our bills... my monthly "paycheck'. I replenish the cash account when I rebalance my asset allocation.