The MSN appears to show PAC/W/8080 which doesn’t appear in the information I can find. However, XM409 and XM410 are PAC/W/8082 and 8083 according to U.K. Serials. That would tie in 8080 as XM407 IF XM408 wasn’t PAC/W/9215... there seems no rhyme or reason...
XM407 ended up at the fire school in Manston.
XP669 is PAC/W/17638.
However, non of this identifies the driver - sorry for the thread drift!