Adjustable lower control arms

[Jersthecool]

So basically this year I am replacing everything suspension/steering wise. In the rear I have to run at least -3 camber to fit my wheels with my current setup so I ordered some 50mm overfenders and my front conversion fenders and welded metal and come out to maybe 30mm wider. So originally I was going to replace the ball joints and bushings, get rid of my camber and throw spacers on but a friend mentioned if I was going to do that and was planning to get adjustable tension rods in the front I might as well just do adjustable lower control arms that way they include the tension rods and I'll be able to widen my stance without spacers and achieve more angle.

Now my questions..
How adjustable are they? Would I be able to achieve a 30mm and 50mm wider stance just by widening them or am I still going to need some size of spacer after?

Also ordering aftermarket inner/outer tie rods can I just buy replacement s13 ones or do I need to use something longer because I will be adding a wider stance with the lower control arms?