Youre verry limited when it comes to pcie speed on h110, but a nest x2g solution would work.
Ie put 2 acorns and 4 vega's on a nest x2g.
If you want full boost of vegas, then something like nest x4 should work, 2 acorns and 2x m.2 to pcie x4 adapters and then have the vegas there running x4.

But with such a setup you need to trust that the nest boards dma engine works as they say, and eliminate the need for high throughput data comming to the motherboard.
It might be better to wait and see when the first batch is shipped and the reports gets in.