I am purchasing a cruising spinnaker second hand. I have never used one
before. I looked up on the net and the pictures I saw showed a piece of
wrap that goes around the forestay and the furled up jib which is on the
forestay.

This is so the tack of the cruising spinnaker is up and high enough to clear
the bow rail, I suppose.

Where can a buy that wrap piece?

Does the tack have an extension to it so that the sail is off the deck at
the bow?

I haven't seen this sail yet, going down this weekend..

Thanks,,