Opinions on Leaf Springs and Torsion Bars?

I was going to get new shackles and hangers, so, I figured why not go offset. I don't want any tire or rim clearance problems when I get em'. I don't have much fabrication skills, but, if I really needed to make something I have some buddies that might be able to help me.
My car will most likely just tear up the streets, so, a good strategy would be to get "soft" rear springs and good absorbers? I think I will get a front sway bar, Edelbrock IAS's all around, .890 torsion bars, and stock height leaf springs, 6 leaf I think I want or is that too stiff? HD 6 leaf maybe? 6 leafs will be stiffer, so, stock height leafs could actually make my rear raise a bit eh? thanks for all your input guys