Thinking this is the list:

https://www.amazon.com/Cable-Matters-DisplayPort-Feet-Resolution/dp/B06Y1QP9FV/ref=sr_1_3?keywords=15ft+displayport&qid=1561998949&s=electronics&sr=1-3#customerReviews

https://www.amazon.com/DisplayPort-Signal-Booster-Video-Amplifier/dp/B01IE3IAIS/ref=sr_1_3?keywords=4k+displayport+repeater&qid=1561996275&s=gateway&sr=8-3

https://www.amazon.com/Cable-Matters-Active-Extension-Female/dp/B00DMFB5OK/ref=sr_1_4?keywords=active+usb+3+extension+15ft&qid=1561999021&s=electronics&sr=1-4

Look good you think?

Thanks very much for suggestion,

This worked for us as well.

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Here is what we used from Amazon USA:

https://www.amazon.com/gp/product/B01IE3IAIS/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B07HCZCVF8/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B0179MXKU8/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

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And since there is enough cord for ceiling mount now:

https://www.amazon.com/gp/product/B07GV8CNPW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

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Total of $175, but closest I can get to wireless for now.

I'm guessing for the US, this may work?

https://www.amazon.com/DisplayPort-Signal-Booster-Video-Amplifier/dp/B01IE3IAIS/ref=sr_1_3?keywords=4k+displayport+repeater&qid=1561996275&s=gateway&sr=8-3

This seems to be a possibility but I would still need a separate USB booster or active cable (I've been using the ViveLink for Odyssey+)

https://www.amazon.com/DisplayPort-Signal-Booster-Video-Amplifier/dp/B01IE3IAIS/ref=sr_1_3?keywords=displayport+repeater&qid=1559400289&s=gateway&sr=8-3-spell