I'm repairing my '70 Barracuda from back to front, still a long way from the front, but thinking about daily driver suspension with a modern feel. Just want to keep up with modern cars in traffic on modern performance rubber. I do plan to keep the heavy 383.

Mini-tubbed it since I replaced about all the rear sheet metal, may or may not narrow the rear axle. Will add chassis stiffeners also, but plan to keep drum brakes in the rear. Haven't yet started spring relocation, before I start cutting, for a modern ride, is it worth it to instead go 4-link?

Up front I don't see a need to replace the torsion springs but want the feel of rack and pinion. Is that a common way to go, or is it normal for everyone to spend $5-8K on tubular front?