Casper9182: why don't you buy my rolling chassis ('73 240Z), suspension and brakes. It's a solid platform then you can put a power plant / transmission you will have more information (and possibly a warranty) on. Price will be negotiable if purchased as a package.
http://forums.hybridz.org/topic/120760-1973-240z-rolling-chassis-so-cal/
http://forums.hybridz.org/topic/120826-beta-motorsports-strut-kit-big-brake-kit-turbo-tom-kit-so-cal/