The tool for the assembly of the spinnaker joints is overpriced and to do without it is possible but really very constraining and long.
Here is a 3D model to print your mounting rings, you will just find two long screws M8 and your seal will be mounted in seconds.
Tested instantly on my fork of my Versys successfully.
Just print the piece in duplicate to get the complete tool.
Fill rate: 50%
Print time: 8 hours
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