I would gladly help out with the ACP part, if you have any specific ideas. I'm a bad modeler, which means I can more easily change something than create it completely from scratch.
Since we're both working on big projects, maybe you'll consider doing a tile for the expandedfactions? 
Oh yeah, I was thinking the lost souls cloak of soldiers would be a pretty decent magical cloak (the transparent one). Maybe something that adds extra dodge?