Tom Kaye has said the next batch will be sold from a web site (not yet up and running). He is still in the process of delivering the first batch. Th expectation is that second batch will become available in about 8 weeks. It will include 3000psi and 4500psi versions. There may be some design adjustments based on the beta field testing of the first batch. He is still quoting $390 plus shipping.
Tom is currently answering questions at his compressor facebook page:
More information is available at: