If it were a simple bolt-in proposition everyone would be doing it and what would we need kit manufacturers for?
Suspension geometry is fairly critical and the hot rod manufacturers usually only make pieces for a certain chassis or type of vehicle. Asking them to supply you with Cobra suspension pieces will end in a question like- "sure, just supply me with the drawings and I'll get them put together for XX amount of dollars" (envision large numbers here) Either that, or a just a dumb look like you just got off a spaceship from outer space.
If you can get hold of the drawings and the other pieces needed to make the suspension, you are ahead of the game. However, finding all the proper uprights, ball joints, steering arms, hubs, mounting brackets and pick up points, bushings, bolts, shock absorbers (preferabley coil-over), etc...... can be a daunting task.
If you are looking to do a scratch build, you've come to the right place. There is a ton of knowledge and experience here and these guys are more than willing to help out.
Read through some of the threads and learn what you can, then take a look at the different options and parts and pieces, set a budget and get started. It's easy, just ask anyone!

- Bob