Has anyone here ordered and/or installed a LISY replacement mpu for the Gotttlieb Sys 1 or Sys 80 pinball machines? The price and flexibility seem very attractive, but there seems to be little information from users here on Pinside that have personal experience with these boards. Are these boards available to order/ship to the US? Do they work well? I am an experienced electronics tech and have linux and Raspberry Pi systems, and also several Sys 1 and Sys 80 games that could use new MPU's, so this would be a great solution if it works well. Thanks for any feedback and advice!