E30 Zone

Started ripping them out and we'll I'm stuck now what goes on the other end of the fuel rail pressure regulator where's the nipple it goes on to it's on the throttle body I'm just not sure which?
Also what goes to these hoses real OEM doesn't really show.

.

Think Iv got it, rocker cover breather to throttle body gold nipple iv coloured in orange
And the blue dot up to the trunk and the other end to the icv.
Last thing I want is it filling up with water where it shouldnt.