I have been looking into the details of how to run your car on water. One of the things that I can’t seem to find concrete information about is the cost. I know there is a cost involved with buying the instructional “how to” guide but how much can one expect to pay for the materials to make the conversion kit and have it installed. I wish I could say that I had the confidence in either my husband or I to build and install the kit, but that just isn’t the case. We will need to hire someone. If you have any info about this, please let me know.