These pipes are easily replaced buddy. I had major issues with the WEPR CT9 power up kit as it takes these returns past the stock position. I was able to source a longer replacement oil return in my local fabricators shop easily enough (90 bend right? just measure diameter). I managed to get a custom braided oil feed line made up in my local PIRTEK (hose specialists) for about 45 euro (35GBP).
Just look up hose specialists in your local area buddy. I found PIRTEK to be great (not sure if you have them over there) but initially they were unwilling to help as I was not a large commercial customer!
I am not qualified to answer your turbo question..no doubt Adam or someone will be in here to help out