Ahhhh I see...
We had similiar ideas as well. Instead of going with the full body suit, me and my cousin advised into getting Underarmour, it looks almost like what the Emperor is wearing, and since were making the main body piece out of Wonderflex we thought that would be the best approach. So wearing that underneath and then making the mid-arm pieces out of fosshape and then attatching them to the underarmour by sewing. And then just get purple tights for the bottom.
For shoes we found these shoes that might work well as a base:
(Currently out of stock T_T)
And then dye them the right color with this:
But were not actually sure if the dye would work :S
Other than that we pretty much have the same ideas *_*
Were also confused about the Cape/Shoulder convergence points, as in how to get the cape attatched with the bat ear shoulders (as I now call them) we were going to use wonderflex. But I'm pretty sure we'll figure something out when we get there.
And also if you have the game it is a GODSEND for reference points. The in-game video editor lets you freeze a battle at any time and zoom in at the right angles to get take screenshots of a character, I was able to see things more clearly like his back (theres a design there too) and what his belt looks like.
So if you need some pictures, hit me up~!