That looks like a "SPS" type Kev, with a the P8 computer?? You sure the strada unit fits OK? Just that the P8 runs two pickups and the strada one.
I may be able to get one of whichever?? not sure on the prices tho. If you can confirm the type, i can do some diggin'
The Denso plug, from the catalogue, is the IU27 5363
NGK are only listing one plug, the one i've tried that doesn't fit