I don't know if anyone has done this for SABRPTS (and I didn't find it anywhere) so I went ahead and did it myself.
The sheets are here: https://docs.google.com/spreadsheets/d/1q86kMDGU8k6D3LEqb8cOuyhuQa97-OwNmeVNx6IDoe8/edit?usp=sharing
And the R code is here: https://drive.google.com/file/d/0B6pYrgZCCxB0cVpad3locVR0WUk/view?usp=sharing
Would love feedback, positive and negative.
I'm @zev on slack if you have any questions/suggestions.