Welcome to the best cobra resource on the net. There are guys on here who are dealers in cobras, and individuals who have built 1 or 6 or more cobras, and then there are guys like me who have only driven one for 2 years (bought used), with a new one being built turnkey, because I just don't have the time or experience to build one. My opinion on the "first" kit to build, would be one that is very complete as far as providing all of the fittings, lines, holes drilled and punched, along with a VERY detailed assembly manual, and live, competent tech support available via phone and email. The ERA basic kit is an $18,000 package. Very high quality (therefore excellent resale). Definitely contact Bob and Peter at ERA in New Britain, Ct. They offer the 427 body and also the somewhat sleeker 289 FIA body. A very stout 3" * 4" rectangular tube chasis. Check out their website
www.erareplicas.com Have fun!!