HP2, since you are building what amounts to a competition car without a set of rules to conform to, perhaps you should give a basic upgraded stock set up a try first. This can be done for a very reasonable price, and if you find you can out drive its capability, then you can decide to upgrade and refine it further or swap to an AlterK or XV set up and sell off your stock upgrade parts to recoup some money.

So, assumptions I'm working from; E body Cuda with a small block in stock location, around 3400# race weight with a 55% front weight bias. Suspension set up would be; 1.22 front t-bars, 1.125 front sway bar, 120# rear leafs, a .95 or 1.0 axle hung rear sway bar and some QA1 or Varishock adjustable units. Maybe some adjustable strut rods to fine tune the lower control arm location, lower control arm braces to resist sway bar deflection, offset upper arm bushings to gain additional caster. A bump steer analysis wouldn't be a bad idea either. At least poly bushings everywhere possible, maybe even delrin. It goes without saying that significant and extensive chassis reinforcement is part of this plan as well. Adding torque boxes, subframe connectors, cage, and/or other sorts of triangulation will be required.

This combo should produce a car that is pretty close to neuteral and almost as capabale as the stock system can get, without getting into the expensive and tricked out Hotckis pieces, which would add a further level of refinement. Figure it will cost $1500-2000 if you shop carefully and negotiate for some used parts along the way. Adding the Hotchkis stuff could add another $1500 on top of that, which puts you close to entry level AlterK front end territory. So, at that point, you'd have to ask yourself is it worth the extra $$ to further refine the stock set up or go for aftermarket system that is more adjustable and has more available spring rates to play with.