I was hoping to get a cut down version of the
PicoEVB for my PineBook Pro and run it under Linux with a MiniMig core variant with the video and audio rendered as memory-mapped I/O to the host hardware. Of course the DevBoard I've linked is way more complicated than it needs to be and it costs $200+ to reflect that. The rest of the chipset emulation can run on one of the little cores on the RockChip RK3399 while one of the big cores can run the actual JIT code.
This chip would be well suited to running on a PCI or PCIe board also. It runs fanless and has enough space for future expansions such as SAGA chipset emulation like the Vampire standalone. I'm not sure how much the FPGA chip costs by itself though.