Single seat pilots don't use checklists.
Here was my flow.
1. go clockwise left to right and make sure everything was off.
2. start apu and begin aligning INS.
3. start engines
4. go clockwise again and turn everything on.
5. go clockwise and test everything
6. wait til checkin time and check in your flight. FM/VHF/UHF.
7. Arm seat, INS to Nav (No GPS) and taxi to arming.
O2 reg stays on Normal-not 100 unless you have the mask on and are hungover.
Leroy