If your Anamnesis is up to date, they will show not just the height slider value but also the exact measurements. 
Just check the height measurement and transpose them to the corresponding actor, esp if trying to pose using different races. 
(Not tested on other races. Adjustments might be needed.)

Left and Right Females are according to the POV of the male.

Heights:
Male - Magnai's Height
Right Female - Cirina's Height
Left Female - Sadu's Height

The following are for the local rotational values. Might help a lot since you will only need to worry about positioning instead if followed correctly. 
Needs some math though, but it's worth the effort (Unless i messed up somewhere here).

Rotational Values:

Male:
X: 0.000
Y: x (as in any value)
Z: 0.000

Right Female:
X: 0.000
Y: x + 300.113
Z: 0.000

Left Female:
X: 0.000
Y: x + 50.113
Z: 0.000

After rotating, position normally.
Note/s:
1. The variable "x" is different from the capital "X" rotational value. Lowercase "x" can be anything you want.
2. Should the calculation exceed 360.000 degrees, I'm not sure if Anamnesis will adjust it itself, but you can subtract 360.000 to get the actual rotational value.
3. Difference between Left normal and v2 is that v2 shoves a finger up the male's ass. Not proud of the v2 elbow cause I'm shit at adjusting elbows correctly.

4. I apologize again if the tips are confusing. Still testing different formats for it lol. If this hurts more than it helps, you can pose blindly as usual.