Hi Mike,
Well I am glad you started this subject. We don't have many answers regardless 3d environments in the A-chat.
In the meantime, until we get answers, I suggest you just to relax and enjoy doing 3D work with this what we have now. Do with maps whatever you want, improvise, let your ideas fly, and the most important have a fun .. And of course post your works on the forum let us to see and to enjoy together with you.
Keep it up.
Cheers !!!