I just started replying and didn't wait lol

I have a flange you can have
Oil lines take the turbo once you get one to a Hydraulic shop they sells fittings and have them make it. They made me a fuel feed line, a new turbo line, a new turbo drain line.. Not gonna lie a lot cheaper than buying a kit from anywhere online..
Turbo I'd choose the one above.

I'd ask whoever tunes your car which are they best with, Hondata, neptune, AEM or whatver. If I were you I'd stick with s100 unless you can upgrade cheap to s300