I just ordered a eGFX Breakaway Box 550 Bundle (with Radeon RX Vega 56 Card) for $819.

https://www.sonnetstore.com/collections/egpu-expansion-syste...

How does the Radeon Pro 580 compare to the Vega 56?

Edit: I just ordered a OWC Thunderbolt 3 dock and it looks like this eGPU has all the ports I need on the back. The dock was like $300 alone.