load M3, load the selected clothing item. conform the item to M3. then with the clothing
item selected, go to "Figure/Set Figure Parent". scroll down to M3 and select "Body".
click ok
repeat for as many items your conforming to M3. once you've got everything conformed
and parented. then select M3/Body and scale him down to 50%. all the conformed items
will scale down with him and pose accordingly.  8-)