V8 swap with a twist

[stonebreaker]

Greetings. I'm in the planning stage of a V8 swap into a 92 sonoma. I'd like to set it up as a daily driver/weekend autocrosser. What makes my build different is that I wrecked my 96 impala, and I'm going to put as much of the impy into the sonoma as I can. In addition to the LT1, I'm using the trans, the rear end, the spindles, the brakes (including the ABS system), the cruise control, the steering column, the wheels, the brake master cylinder, the twilight sentinel system, the instrument cluster, and anything else in the impala that's better than the equivalent part on the sonoma.

The cheapest option for the rear end is to narrow the impala rear and mount it under the truck. I'm planning on using the stock control arm mounts on the rear end if possible, combined with either coil springs or coilovers. I want to redo the front end with tubular a-arms, coilovers, swaybar, the taller impala spindles (which improve the camber curve as well as allow me to use the larger impala brakes), and the quicker ratio impala steering box.

Here's where I need your help. I've been drag racing the impala for about 10 years. I've never set a car up for corner carving. I've read Herb Adams' 'Chassis Engineering', and I have a rudementary understanding of the principles involved in steering geometry. Just enough understanding, that is, to realize I need some help. I have no idea how to calculate spring rates or instant center or anything like that. I understand there is suspension software out there that will help me calculate all that stuff. I need something that will do both the front and back suspension.

Thanks in advance for your help.