The plan with the project was to have something that could be completely built at home by the average enthusiast mechanic. At some point, we will push it a little past that point, but everything to date can be recreated with a Bentley manual, normal tools, and a bit of effort.
You mentioned fabrication specifically. As I mentioned in the early post on that, what we are doing can be duplicated by a bolt-in rollbar, which you can install - and remove down the road. We did custom because I like our part better and there was no great time savings by the time we installed another product.