​For those interested, I setup a working directory on git for this project (https://github.com/sfgit/FPGA_Arduino_Shield).  I've uploaded a few libraries today also for the FPs and a !very! generic PCB (just the imported board shape and some parts to get the area-costing down.  Now that I know what sort of space I have to deal with, I'll go back and start cranking on schematics and getting the schematics together.  

The board in the repo is for reference at this point.  I will be hacking this apart and redoing all of this as layout takes flight.  This was just an easy import from Eagle to my tool of choice (Altium) to get board dimensions and such.