Giant City and Ferne Clyffe question

I'm planning on climbing at these parks this spring and have never been to either before. At Giant City especially it seems the tree line is set pretty far back (at least from what I can tell on Google Earth) and was wondering how long of anchors I should plan on needing for top rope. Any advice is greatly appreciated.

I went down there last summer.

There are some bolt anchors at the top of the shelter 1 bluff - which from what i could tell - is really the best climbing in the park. The Devils sandtable area was kind a crappy.

The trees are really far back from the Shelter 1 bluff cliff face- bring a rope if you hope to set anchors off trees.

The bolt anchors i found were also quite a ways from the cliff face- 20foot runners I think would give you enough to play with and have your biners hanging free.