Welcome to CHR, Chris. I think you first need to sit down and decide exactly what you want to build. For me, that means drawing it out to scale (computer drafted, drawn out on paper, however you can), including wheel & tire size, wheel base, ride height, stance, and body position. Once you have the car drawn the way you want it you can draw out the chassis to fit, and figure out the details of necessary "Z" sections to get the height right, etc. For others it's mocking up everything with jackstands, blocks, etc, to "eyeball" the right look. Whichever works for you the key is to plan the work, then work the plan to build it. Just my $0.02.