Island rust 0.3

monuments floating in the air, and missing custom prefab files in RustEdit

Hi,

I downloaded [Map name] v[version] from Codefling. When I used it, several monuments were floating in the air, so I had to open the map in RustEdit [version] and fix their positions.

The download only contains the .map file, and when I open it in RustEdit I get these errors (screenshot attached):

Unable to load custom prefabs \ineswingingtreeprefab – file does not exist: …\CustomPrefabs\ineswingingtreeprefab.prefab
I don't have these custom prefabs, so they could not be loaded while I was editing the map.

Could you please:

Send me all custom prefab files used on the map – these four and any others (.prefab and .prefab.heights), so the map opens and can be edited without errors.
Tell me why the monuments are floating – is this a known issue, or is it related to the Rust or RustEdit version the map was made for?
Tell me whether the map works on a server without these prefab files – are those objects stored inside the map, or are the files required?
Let me know if it needs any extra plugins or extensions (e.g. Oxide.Ext.RustEdit).