PC Engine schematic / board layout

While there are plenty of nes, snes, and MD ripoff consoles floating around, I'm not aware of anyone that's made a 3rd party recent PC Engine and was kind of thinking of making my own. I was wondering if anyone had made a board layout / schematic or had starrted a project like this before of documenting the entire system?

Also in this vein, I guess anyone looking to unload broken systems I could tear down for this project (as I'm loathe to tear down my working turbo duo) should shoot me a message

 

It's not the Pcb that's the problem it's all the proprietary components that will cause a problem..

 

there is a basic system schematic posted at db-electronics

 

I was planning to model the chips with verilog and replace them with FPGAs. My current idea isnt real cost effective unless I copy a turbo RX though haha

I started the verilog model of the HuC6280 already - what other chips will need modeling?