I figured out what scale to print the pattern at. So, I'll post it here for anyone else who might also have this problem.
(Disclaimer: I have not tried making a suit by printing at these scales yet, I'm pretty confident about them, but still use at your own risk)
BEFORE ANYTHING ELSE, CHANGE IMAGE SIZE TO 72.516" x 100", VERY IMPORTANT!
S (5'4" and shorter) - 88%
M (5'5"-5'8") -95%
L (5'9"-6'1") -105%
XL (6'2" and taller) - 112%