I have a conversion that I am selling. I will sell the entire car, or just the conversion. The details of the conversion can be found at Boulder Hybrid Conversions . It is the 10kw conversion that cost $12K. The car is a 2004 prius. I would sell the conversion only for $8K. There are less than 10K miles on the batteries. I would also consider a trade for your prius if you did not want to move the conversion to a different car. Thanks! Dan