It's impossible to predict your study score accurately. It's also impossible to predict how your sac scores will scale. Maths is also hard because the sacs, and each exam are worth different % of your study scores (sacs worth 34%, exam 1 worth 22%, exam 2 worth 44%).
As a rough guide, using last years data (noting that the sacs scores below are scaled):
Study score of 23:
SACs: 44%
Exam 1: 23.1/80 (28.8%)
Exam 2: 46.5/160 (29%)
Study score of 30:
SACs: 63.9%
Exam 1: 41.7/80 (52%)
Exam 2: 80.2/160 (50.1%)
Study score of 37:
SACs: 83.8%
Exam 1: 60.3/80 (75%)
Exam 2: 113.9/160 (71.8%)
Study score of 44:
SACs: 103.7% (this isn't possible and the excess would have to come from exam scores)
Exam 1: 78.9/80 (98%)
Exam 2: 147.6/160 (92%)
Each of these study scores (and sac and exam marks) are one standard deviation apart. To compensate for having sac scores one standard deviation lower than what is listed, you will either need your exam 2 score to be close to one standard deviation higher (as exam 2 is worth 44% compared to sacs worth 34%) or your exam 1 score to be more than 1 standard deviation higher than what is listed (as exam 1 is worth 22% compared to sacs worth 34%).
To get a score between 30-37 with sac scores of 44%, you'd want to get the scores listed under the 37 category, that would put you between the 30-37 range as you'd be averaging half a standard deviation above 30 (so approx the middle - of the cohort not the score range - between 30-37).
Having said all that, take this as a rough approximation only. The only thing I can tell you with complete certainty is that my predictions will be incorrect. You can have a look at the grade distributions yourself if you want to try and figure out a narrower range of scores to be aiming for (I am neither good enough at math nor sober enough to work it out with the varying % contribution from each GA) but tbh it probably isn't worth your time.