Wow, am I super excited with what I accomplished this week! I built a terrain piece using Alex's level design, and it is better than I had imagined! One of the challenges was that because we wanted a less blocky modular looking platform, we had to build all the pieces together. Afterwards, I had to detach each section to be small enough to fit a 1024 texture while showing enough detail. I had learned this process while interning at Cartoon Network and it has helped tremendously!
So what I have done is created everything into one fbx, but sliced them into different pieces. I bring them into 3DCoat and UV map them all together. I set a different channel for each piece so when I do paint, I paint from one piece to another through different texture maps, rather than on one. This means I will have multiple 1024 texture size. This made workflow a lot easier, and of course the seams aren't horrible.
I have to pat myself on the back for this one :)!