Similar to the recent discovery of Copenhagen Suborbitals (but not quite as ambitious), the Portland State Aerospace Society is "an educational aerospace project at Portland State University in Portland, Oregon. The group consists of undergraduate and graduate students, faculty and staff of PSU, and local community members- ranging from high school students to engineers in industry- who are interested in aerospace engineering". Their "vision statement—or long term goal—is to "put nanosatellites into orbit"". Their most important similarity to CSTART is "All projects we do are open source, from our CAD drawings to schematic diagrams to our software. We pride ourselves in sharing what we learn with the world of amateur rocket enthusiasts, and with our ability to collaborate with other groups"/p>
They have launched a few solid fuelled rockets so far (only to an altitude of about 3km), but their webpage says they are starting to work on paraffin hybrid rockets, which are one of the options I think we should be considering for OHKLA and possibly CLLARE. They might be another good group to make contact and initiate knowledge exchange with.