Latest news - I actually tried to do something to the new car and it ruddy well worked....
Thanks to Steve's excellent KB guide - I now have cruise control in the GLX

the spare switch was already there

and all the bits I needed came from the donor Exec so free too

but the clip that holds the switch to the pedal put up quite a fight
Took it for a spin and it works a treat.
Also, last week I drove to Totton to meet up with James ( Ratty_Black ) from the 'hair dresser' club and bought a freshly oiled and ready to fit K+N filter. I didn't really think it would make a big improvement and got it really for longevity. I am please to confirm it DOES make a difference and the car has a bit more of a spark to it. This could of course be the placebo effect but I like it a lot...
Next on the list is an IQ93 map from EcuEdit.....