nice one, I bet you won't be doing that again in a hurry.
> will it be ok with out the smaller bit on the inside ??
right, the inlet oil feed pipe temrinates in a stainless steel flexi metal pipe with banjo. The banjo is bolted down with a hollow bolt, which has 2 holes in the shaft.
This allows the oil to follow out the banjo into the bolt and downwards into the K16, exactly the same method as on brake calipers. What you need by the sound of it is the hollow bolt, not the inlet oil feed pipe (which is £60 new from autvaux!)
Look at the pic below, you want item 9 and the cap (item 10)