Julian,
You probably dont have it still but I think you took an outline of my shifter plate at Ian and Shanes meet up not last year but the one before!
If not I can pull it of and send over but it will probably be a couple of weeks cos the car is not stored at home here.
Word of warning to anyone interested in one though. I love mine but keep in mind the gearbox needs to be adjusted properly otherwise it can be hard to select gears. At the minute I can select both 1st or 3rd in the slot for 1st as I need further adjustment and consequently it has marked the shifter stick where is hits the S/S of the gear locations. Also the S/S does not rust but the shifter stick is not S/S so it will rust (just enough to take the look of it a bit. Maybe consider a S/S slieve to go over the stick as well or do as I do and every so often run a bit of sandpaper up and down the stick.
Ive got the Shifter plate and ball so if you cant find the outline let me know.
Paul.