In addition to the facility we are setting up at the museum, there are two collectorss who are pursuing rebuilding their tubes. One is setting up one of "garage" plants:
http://www.earlytelevision.org/crt_color_champion.html
The other is rebuilding a 15GP22 in a way that he hopes will solve the leakage problem these tubes have:
http://www.earlytelevision.org/yurkon_15g_project.html