Saddle the same on both? If so mark the exact middle of rails measured and distance to top of saddle through that dot is your saddle height. Measuring setback can be tricky if walls are wonky etc so an easier way is to put the back of non-drive side crank against a door jamb or something and then measure as it’s a much shorter distance (plus doesn’t matter about chainstay length/tyre diameter). Then just add on distance from back of nds crank to centre of bb
Saddle the same on both? If so mark the exact middle of rails measured and distance to top of saddle through that dot is your saddle height. Measuring setback can be tricky if walls are wonky etc so an easier way is to put the back of non-drive side crank against a door jamb or something and then measure as it’s a much shorter distance (plus doesn’t matter about chainstay length/tyre diameter). Then just add on distance from back of nds crank to centre of bb