Well after a few more days hard at it, the car is now on a permit and I enjoyed a proper test drive around the suburbs this afternoon. It doesn't rev much past 3500rpm with the pea shooter exhaust tips and mufflers but I can already tell what a beast this thing is going to be. Grins all round.
A few more evenings and the wipers will be done, plus a couple of other small jobs then it's off for a wheel alignment and the IM240 test. With a bit of luck I'll be through engineering in a couple of weeks' time and then we wait for the VIN.
Pictures below showing new "Kenmer" intake and cold air box, plus current state of the car and you can see the hardtop in the background - patiently waiting for engineering to be completed.