i havent been able to find any for sale. you may want to walk away from repairing the SPI at this point. When i was having engine trouble with mine a few years back, i couldn't find what i needed, so i wound up trading the car in as is. you may want to just swap a zetec in at this point
Will aka Misfire
2003 LX "traded in"/2010 SES "traded in"/2012 SEL Hatch "traded in"