S13 sr turbo lines

[lucas240sx]

Im trying to understand the turbo lines
Its hard to when you dont have them in your hands
I went on google and looked at pics of braided lines
Finally found out the oil restrictor size for ball bearing turbos

I have a t25 right but will upgrade to my s15 t28 later down the road

-Can i buy any turbo line kit and it will work on both turbos beside installing a .035 oil restrictor for the t28
-Does the restrictor bolt act as the banjo or do i have to get a nut for it?
-what brand restictor should i go with?
-cs or isis lines?

Thank you for your time