Oh, well in that case, we have to ask swholli/packer what they're filming.
Warren is the one doing all the filming (at least, until further notice. Talk of me doing the filming was said, but then that's still up in the air at this point. Though I'd like to voice my opinion that I sort of want to... :D) and his computer is perfectly fast enough for Blockland standards. I myself am running a high quality set-up as well, so either of us should have no trouble with the size of the build. However, to note on those who have criticized this man's effort, I say to you this: there are certain shots that will require a detailed backdrop, one to this caliber, however, as long as the important spaces (such as the hanger the Falcon is in or the cantina itself) they will need both inward and outward detail, to my knowledge he has said he will be producing.
All else, if the certain buildings that are needed aren't up to par, we'll simply rebuild them ourselves but leave the rest. I commend Niven for doing the project such a large favor, as it may very well be the thing that gets us out of our rut.