Using Optical Network Port on a Lumin U2

I am looking to use the Optical Network Port on a Lumin U2 Streamer.

I have a 50 ft cable run that already has CAT 6A cable.

I will be adding the SOtM 10GB switch and need advice on hook up options.

Either:

1) Get a Ethernet to Fiber converter to plug the existing cable into then >  Fiber to the Lumin U2.

2) Run a Fiber optic cable from the SFP port of the SOtM 10G switch to the Fiber optical network port on a Lumin U2 Streamer.  

Which option should I use and what gear / cable(s) do I need?

Budget would be up to or around $1000