Neat. I happen to have a collection of 25 MHz "brain-dead" 286 processors and 287XL and 287XLT coprocessors. I'm thinking about creating a board that puts all of the glue logic, bus transceivers, support peripherals, and BIOS into an FPGA so that board would be extremely minimal. While inauthentic compared to the original 5170 AT, it would be far more flexible.