If anyone wants to take a look at my spreadsheet: https://www.dropbox.com/s/xatq5vya5cpohfm/SkillPointCalculator.xlsm?dl=0
It's easy to use, in the column "Requested Skill Level", enter the skill level you want to achieve (the last digit is the level, the digit(s) before that are rank/mastery). If you want to add a character, just copy the "TPL" sheet and rename it.
It also contains both of the characters I have posted so far.