Please move the corrdinates for everything to the JSON setting or a new data file. 

Doing this update would allow server owners to install new versions of your mod (the CS file) without loosing any changes made to the recycler coordinates.

private SpawnData _domeSpawnData = new SpawnData(new Vector3(-0.1f, 38.1f, 33.57f), new Vector3(0f, 184f, 0f));
//private SpawnData _domeSpawnData = new SpawnData(new Vector3(19.90f, 37.80f, 16.57f), new Vector3(0f, 235f, 0f));
private readonly Dictionary<string, SpawnData> _smallOilRigRecyclerPositions = new Dictionary<string, SpawnData>
{
	{"3",new SpawnData(new Vector3(21.01f, 22.50f, -30.80f),new Vector3(0f, 180f, 0f) )},
	{"4",new SpawnData(new Vector3(32.10f, 27.00f, -34.50f),new Vector3(0f, 270f, 0f)) }
};
private readonly Dictionary<string, SpawnData> _largeOilRigRecyclerPositions = new Dictionary<string, SpawnData>
{
	{"4",new SpawnData(new Vector3( 20.57f, 27.10f, -44.52f),new Vector3(0f,   0f, 0f) )},
	{"6",new SpawnData(new Vector3(-13.60f, 36.10f,  -3.40f),new Vector3(0f, 180f, 0f 	)) }
};
private readonly Dictionary<string, SpawnData> _fishingVillageRecyclerPositions = new Dictionary<string, SpawnData>
{
	{"smallB", new SpawnData(new Vector3(-21.00f, 0.30f, 6.50f),new Vector3(0f,130f,0f)) },
	{"smallA", new SpawnData(new Vector3( -8.50f, 2.00f,16.06f),new Vector3(0f, 90f,0f)) },
	{"large" , new SpawnData(new Vector3(-20.70f, 0.20f,-9.60f),new Vector3(0f, 45f,0f)) }
};

SOmething like this in the Data folder called MonumentRecycler.json...

{
    "Dome": [
        {
            "tag": "Dome",
            "position": {
                "X": -0.1,
                "Y": 38.1,
                "Z": 33.57
            },
            "rotation": {
                "X": 0,
                "Y": 184,
                "Z": 0
            }
        }
    ],
    "Small Oil Rig": [
        {
            "tag": "3",
            "position": {
                "X": 21.01,
                "Y": 22.5,
                "Z": -30.8
            },
            "rotation": {
                "X": 0,
                "Y": 180,
                "Z": 0
            }
        },
        {
            "tag": "4",
            "position": {
                "X": 32.1,
                "Y": 27,
                "Z": -34.5
            },
            "rotation": {
                "X": 0,
                "Y": 270,
                "Z": 0
            }
        }
    ],
    "Large Oil Rig": [
        {
            "tag": "3",
            "position": {
                "X": 20.57,
                "Y": 27.1,
                "Z": -44.52
            },
            "rotation": {
                "X": 0,
                "Y": 0,
                "Z": 0
            }
        },
        {
            "tag": "4",
            "position": {
                "X": -13.6,
                "Y": 36.1,
                "Z": -3.4
            },
            "rotation": {
                "X": 0,
                "Y": 180,
                "Z": 0
            }
        }
    ],
    "Fishing Villages": [
        {
            "tag": "smallB",
            "position": {
                "X": -21,
                "Y": 0.3,
                "Z": 6.5
            },
            "rotation": {
                "X": 0,
                "Y": 130,
                "Z": 0
            }
        },
        {
            "tag": "smallA",
            "position": {
                "X": -8.5,
                "Y": 2,
                "Z": 16.06
            },
            "rotation": {
                "X": 0,
                "Y": 90,
                "Z": 0
            }
        },
        {
            "tag": "large",
            "position": {
                "X": -20.7,
                "Y": 0.2,
                "Z": -9.6
            },
            "rotation": {
                "X": 0,
                "Y": 45,
                "Z": 0
            }
        }
    ]
}

I understand if you are not supporting this mod any more, but perhaps someone can do this for you.