I live in Portland, Oregon and I'm doing some research for my boss who recently came across at 2006 model that had been converted to a PHEV. I have very little knowledge of plug-in conversions, and am a bit lost of where to start looking for information (that I can easily understand). I imagine some -- or maybe even most? -- conversions are done by handy DIYers (Main Page - EAA-PHEV), but are there also professionals who do it? How much should my boss expect to pay for the battery + installation? This also might be a bit of a stretch, but is there a website with a listing of people/companies that perform the conversion? Any information you can provide, specific or general, would be greatly appreciated. Thank you!