I wouldn't buy that kind of stuff from eBay. I've watched those fittings shear off with just hand tightening.
You need to find out what oil line size, fittings, drain line size, etc are recommended from the turbo manufacturer and then purchase quality parts. Don't forget the water lines if your turbo uses them.
2004 SVT: bewst'd!
2010 Escape 3.0 V6
2004 F350 6.8L V10
1986 XR4Ti 2.3L Turbo, 15 psi
2007 ST ; formally bewst'd - R.I.P