If they are also to be statues, but at the same time transparent, I would go through the trouble of merging the model sections with each other so you can get rid of the fact you can see the top faces of nodes inside other nodes. I am not sure if I have it in my toolkit functions rollout, but you can merge two nodes in GMax by doing this in the listener window:
newNode = $firstNodeName + $secondNodeName
newNode.name = "newNodeName" (optional because if you loop it, who cares what its name is until the end)
...and then if you repeat that for all nodes, continuing to add them to the newNode, what you get is a single node which is the union of all 3D space occupied by the individual nodes, with all duplicate 3D volume removed (give or take errors, and we all know GMAX has errors).
//With my tool library installed and ready (in GMAX)
//And with your object being equal to a single node with all parts being represented by elements of the whole (attached)
createConcaveHull $objectNameHere deleteOriginal:true
It does leave behind all the original nodes, so you can either delete them, or save them separately in other file.
It does increase the poly count, but for static placeables, not many will notice or care. If you need to stay lowest poly, then simply don't do this. The quantity of increase, I have found, is approximately 3X on all my low poly individual nodes. There is no science behind that, and it will completely depend on what you are merging.
What it does give you is a great sculpture in a single object, with which you can then apply texture effects like those I have used on my ice weapons, gem weapons, and crystal orbs.
