The design of this computer has been updated and I have PCBs available for sale through eBay (using the link on the left - "Purchase PCBs"); the direct link: http://www.ebay.co.uk/itm/121510974344

A new page dedicated to this new computer design has been created: https://hackaday.io/project/3537-avr-basic-computer-v01

This design includes an additional EEPROM IC to allow full size BASIC programs to be saved. The PCBs are white in colour with ENIG finish.