I contacted Redsun through b2s.com to ask about purchasing RP3000/RP3100 radios. Redsun told me that C.Crane will be their distributor for the USA, and that the new radio models will be available in July 2007. This raises questions about future relations between Redsun and Kaito. More people know about C.Crane than Kaito because C.Crane regularly runs advertisements on the radio here in the USA. Because of that, C.Crane may be able to provide wider distribution.
As of today, there are no Redsun RP3000/RP3100 radios for sale on eBay.