Sorry to those that don?t like seeing stroke-order breakdowns, but I like what Nick is doing.
Except, I think one might consider the I?s and c?s as the start of the character and then determine why we have 5 variations for ending that character? (c variations, followed by matching i variation):
I also tend to think that you might consider the 'o' as something other than your number five - your 'esh' for four and 'sh' for five should suffice to make the numbering system look similar to Roman numberals. The 'o' is quite a different 'c-pattern' as there isn't a matching 'i-version'.
A number of sequence like patterns show in the zodiac section - so if you can find the mapping to your numerical scheme to make these appear in sequence it would be a giant step.