Remember, my offer to you is still open... If you want to experiment with a zapper that was used for initial zapping at a "real" battery matcher (Spyked Racing) just let me know and you can grab it from me at the track. I know it'll go to 90 or 100 volts, and it does have a big heavy cap in it, but I'd have to open it up to find the actual capacitance.
The conversion arrived today, it looks great. Looking forward to driving it on Sunday.