good job on getting a conversion done and on the road.... too bad the hard lesson after all that work is that a super-cheap build, especially with lead, is just not very good.
to anyone else interested.... I'd suggest a minimum build of 120v of 100ah LiFePO4 cells ($5k giving 50 mile max range), 8" or 9" DC motor, and a controller capable of continuous output of at least 200amps, 400amps max. You need at least 30kW output to have reasonable acceleration around town.
You can find SOME things used in Forums or eBay, but you'll end up spending $6k in parts, $5k in batteries, and 150 hours of labor.... you should pick a donor vehicle you'll WANT to drive for 10 years.
Homepage - EnviroKarma.org