replace ima battery

Hi all, Looking to sell my 2006 MT Insight, but it has dead IMA battery pack and I'd been driving with the IMA bypass. I've priced it lower as a result, but wondering if this is hindering its sale to anyone other than Insight geeks. (I've been upfront about the futzy stuff one has to do to...

I'm super new here because I recently purchased a Honda Insight 2001 (automatic) from a private seller which theoretically was completely fixed up and running perfectly. It was passed smog two months ago and drove perfectly in the test drive, no lights came on, so I had no reason to think...

It appears that I need a new IMA battery. What options do I have, in the San Francisco Bay area or possibly near Los Angeles, and how expensive are they?