This awesome new Amiga 4000 Rev 2B motherboard was recreated by ACILL. According to the developer, the work was supported by a GoFundMe page which was a overwhelming success (As evidenced by the board you see in the photo above.) In addition to the red mask you see, he also produced black and white masked board as well.
NOTE: These boards are not populated boards. You are responsible for sourcing your own components for the project, should you decide to accept the challenge of building your own Amiga 4000.