Please have a good look at
my comments comparing Blackbird with Talos II LiteBasically, for anybody choosing between Blackbird and the Talos II Lite, I feel that Talos II Lite is the better choice. It only costs a little bit more, maybe 10% extra but it gives you 4 memory channels and supports up to 22 core CPUs.
The new Radeon RX 6800 XT appears to be an optimal choice for multi-seat, multi-monitor or graphics-intensive workloads. Unfortunately, it is wider than 2 slots. If you put it in a Blackbird then it overhangs the 8x slot. On a Talos II Lite, the 16x slot is on the other side so a large GPU doesn't overhang the 8x slot.
The Talos II Lite mainboard is
in stockThe web site doesn't give a bundle price but you can email Raptor and ask them if they will offer a bundle.