The only thing I can think of is to split the render up into several parts, then reassemble the parts in postwork.

There is a tutorial at DAZ about doing that in the Tutorial Arcana:
http://www.daz3d.com/support/tutorial/tutorial.php?id=1602

Don't know if you need to have a (free) forum membership to read that part or not.

Friends don't let friends use booleans.