Please help to select the right stuff, Distributor, wires...

If you want the GM-style, just get the Summit blueprinted one that you originally selected. You just need the one that fits the 360 Mopar engine: DODGE 5.9L/360 Mopar small block LA Parts and Accessories -
Don't worry about the "curve" right now. These distributors will work fine for most applications with no modifications.