One of the issues so far is that the PRUSA i3 uses a 5 mm threaded rods for its lead-screws. I wish that there was a 8 mm compatible version available. I have found a alternate X axis end design that I can print out that does support 8 mm lead-screws. Here is a link to the upgrade: http://www.thingiverse.com/thing:1140733
I am also making a normal PRUSA i3 printer to verify that all of the parts are interchangeable with my design.
This is what the rebuilt 3D printer looks like so far:
Here is a progress report picture on rebuilding the 3D printer.
It now has the Y platform installed and the Arduino is in place as well.