Suspension rebuild...adjustable strut rods??

Moog has offset upper control arm bushings that allow a bit more caster adjustment. Part Number K7103.
The adjustable Strut Rods aren't so much for caster, but for providing a fixed forward/back so the lower arm doesn't move, but still allow up/down articulation. The rubber bushings on the factory style struts allow for a bit of fore/aft movement.
Added Edit: IMO, For a daily driver, cruiser, show car, or drag strip use, I wouldn't worry about the Strut Rods first unless you were beefing up the complete front end for autocrossing, track days, or corner carving. By then you would also be adding the better and probably adjustable Upper Control Arms as well.