[Hoity]

It's quite funny, you decide one day you want to build a cobra, you talk to people. It takes awhile, do your research, lots of options they say!

I have been researching for 4 weeks, yet the answer has been under my nose for 3 1/2 weeks. Some kit suppliers offer kits that appear cheap at the start, you talk to the people actually building them and the final result is not that cheap purely from a dollar perspective. Then how much time is too much time, is 250-400 hr labour of love ok, is 600+ hrs too much? Two or three days a month, somewhere in 2-5+ years you have a cobra.
Do you want to spend time at wreckers/Oem dealers sourcing parts, rebuilding secondhand parts, hard to quanitfy that cost.

Is an aluminium chassis going to work harden and crack, does aluminium suffer from elctroysis with two dissimilar metals?

Dirtbikes, boats and push bikes have been made from alloy for a long time with no adverse results. You get to hear a lot of crazy stuff.

If you want to build a car and are capable of maintaining your passion for the build after many many frustrating moments and have endless amounts of time, then you have a few more options.

This thread has a pretty common theme, sure people are passionate about there build but will acknowledge something special when they see it.