Matt,
Thanks for the interest.
We have not made much more progress lately I am buying parts.
We have been working on building and selling a few Prusa 2 printers to fund the parts of the large Ultimaker and also 4 other small sized ones (I figured buying in bulk would be cheaper). Two of the small printers are for local hacker spaces.
We should be moving foward in the next few months and shall post as we work on the printer.