The notations for 10edo and 15edo in Figure 8 on page 16 of http://sagittal.org/sagittal.pdf
effectively give us accidentals for 4, 6, 8 and 12 degrees of 60edo notated relative to the 5edo fifth (720 cents). These are
The best I can come up with for 2 and 3 degrees of 60edo notated relative to the 5edo fifth are
. So these are 1 degree of 30edo and 1 degree of 20 edo.
You didn't answer my question as to whether you want 25edo in this system. And I'm unclear whether you want a 5 nominal or a 10 nominal notation for 5, 10, 15. 20, 30 edos. 10 nominals is easier.